Decision 2626/QD-BTNMT 2022 list of emission factors for greenhouse gas inventory

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Decision No. 2626/QD-BTNMT dated October 10, 2022 of the Ministry of Natural Resources and Environment announcing the list of emission factors for greenhouse gas inventory

Issuing body:	Ministry of Natural Resources and Environment	Effective date:	Known Please log in to a subscriber account to use this function. Don’t have an account? Register here
Official number:	2626/QD-BTNMT	Signer:	Le Cong Thanh
Type:	Decision	Expiry date:	Updating
Issuing date:	10/10/2022	Effect status:	Known Please log in to a subscriber account to use this function. Don’t have an account? Register here
Fields:	Natural Resources - Environment

SUMMARY

List of emission factors for greenhouse gas inventory

On October 10, 2022, the Ministry of Natural Resources and Environment issues Decision No. 2626/QD-BTNMT announcing the list of emission factors for greenhouse gas inventory.

Accordingly, List of emission factors for greenhouse gas inventory – Energy in Appendix I includes CO₂ emission factor of anthracite coal, CH₄ emission factor of anthracite coal, N₂O emission factor of anthracite coal, etc. List of emission factors for greenhouse gas inventory - Industrial processes and product use in Appendix II includes coal consumption factor of partial oxidation technology, factor of carbon content in coal of partial oxidation technology, natural gas consumption factor of gas processing technology, etc.

On the other hand, the Ministry of Natural Resources and Environment assigns the Department of Climate Change to assume the prime responsibility for reviewing and updating the list of emission factors when there is a new country-specific greenhouse gas emission factor, or when there is an updated greenhouse gas inventory guideline from the Intergovernmental Panel on Climate Change, submit to the Minister of Natural Resources and Environment for decision on updating the list.

This Decision takes effect on the date of its signing.

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Effect status: Known

THE MINISTRY OF NATURAL RESOURCES AND ENVIRONMENT ____________	THE SOCIALIST REPUBLIC OF VIETNAM Independence - Freedom - Happiness _____________
No. 2626/QD-BTNMT	Hanoi, October 10, 2022

DECISION

Announcing the list of emission factors for greenhouse gas inventory

____________

THE MINISTER OF NATURAL RESOURCES AND ENVIRONMENT

Pursuant to the Law on Environment Protection dated November 17, 2020;

Pursuant to the Government’s Decree No. 36/2017/ND-CP dated April 4, 2017, defining the functions, tasks, tasks, powers and organizational structure of the Ministry of Natural Resources and Environment;

Pursuant to Decree No. 06/2022/ND-CP dated January 7, 2022, of the Government providing regulations on mitigation of greenhouse gas emissions and protection of the ozone layer;

At the proposal of the Director General of the Department of Climate Change,

DECIDES:

Article 1. To announce the list of emission factors for greenhouse gas inventory, including:

1. List of emission factors for greenhouse gas inventory - Energy in Appendix I;

2. List of emission factors for greenhouse gas inventory - Industrial processes and product use in Appendix II;

3. List of emission factors for greenhouse gas inventory - Agriculture, forestry and other land use in Appendix III;

4. List of emission factors for greenhouse gas inventory - Waste in Appendix IV.

Article 2. To assign the Department of Climate Change to assume the prime responsibility for reviewing and updating the list of emission factors when there is a new country-specific greenhouse gas emission factor, or when there is an updated greenhouse gas inventory guideline from the Intergovernmental Panel on Climate Change, submit to the Minister of Natural Resources and Environment for decision on updating the list.

Article 3. This Decision takes effect on the date of its signing.

The Chief of Office, the Director General of Climate Change and relevant agencies and organizations shall implement this Decision./.

FOR THE MINISTER
THE DEPUTY MINISTER

Le Cong Thanh

APPENDIX I

LIST OF EMISSION FACTORS FOR GREENHOUSE GAS INVENTORY - ENERGY
(Attached to Decision No. 2626/QD-BTNMT dated October 10, 2022, of the Minister of Natural Resources and Environment)

No.	Name of greenhouse gas emission factor	Type of greenhouse gas emission	Emission source	Value	Unit	Method applied under IPCC Guidelines
1.	Fuel combustion activities
1.1	CO₂ emission factor of anthracite coal	CO₂	Energy industry	98,300	Kg CO₂/TJ	Tier 1
1.2	CH₄ emission factor of anthracite coal	CH₄	Energy industry	1	Kg CH₄/TJ	Tier 1
1.3	N₂O emission factor of anthracite coal	N₂O	Energy industry	1.5	Kg N₂O/TJ	Tier 1
1.4	CO₂ emission factor of sub-bituminous coal	CO₂	Energy industry	96,100	Kg CO₂/TJ	Tier 1
1.5	CH₄ emission factor of sub-bituminous coal	CH₄	Energy industry	1	Kg CH₄/TJ	Tier 1
1.6	N₂O emission factor of sub-bituminous coal	N₂O	Energy industry	1.5	Kg N₂O/TJ	Tier 1
1.7	CO₂ emission factor of crude oil	CO₂	Energy industry	73,300	Kg CO₂/TJ	Tier 1
1.8	CH₄ emission factor of crude oil	CH₄	Energy industry	3	Kg CH₄/TJ	Tier 1
1.9	N₂O emission factor of crude oil	N₂O	Energy industry	0.6	Kg N₂O/TJ	Tier 1
1.10	CO₂ emission factor of diesel oil	CO₂	Energy industry	74,100	Kg CO₂/TJ	Tier 1
1.11	CH₄ emission factor of diesel oil	CH₄	Energy industry	3	Kg CH₄/TJ	Tier 1
1.12	N₂O emission factor of diesel oil	N₂O	Energy industry	0.6	Kg N₂O/TJ	Tier 1
1.13	CO₂ emission factor of fuel oil	CO₂	Energy industry	77,400	Kg CO₂/TJ	Tier 1
1.14	CH₄ emission factor of fuel oil	CH₄	Energy industry	3	Kg CH₄/TJ	Tier 1
1.15	N₂O emission factor of fuel oil	N₂O	Energy industry	0.6	Kg N₂O/TJ	Tier 1
1.16	CO₂ emission factor of natural gas	CO₂	Energy industry	56,100	Kg CO₂/TJ	Tier 1
1.17	CH₄ emission factor of natural gas	CH₄	Energy industry	1	Kg CH₄/TJ	Tier 1
1.18	N₂O emission factor of natural gas	N₂O	Energy industry	0.1	Kg N₂O/TJ	Tier 1
1.19	CO₂ emission factor of biomass	CO₂	Energy industry	100,000	Kg CO₂/TJ	Tier 1
1.20	CH₄ emission factor of biomass	CH₄	Energy industry	30	Kg CH₄/TJ	Tier 1
1.21	N₂O emission factor of biomass	N₂O	Energy industry	4	Kg N₂O/TJ	Tier 1
1.22	CO₂ emission factor of charcoal	CO₂	Energy industry	112,000	Kg CO₂/TJ	Tier 1
1.23	CH₄ emission factor of charcoal	CH₄	Energy industry	200	Kg CH₄/TJ	Tier 1
1.24	N₂O emission factor of charcoal	N₂O	Energy industry	4	Kg N₂O/TJ	Tier 1
1.25	CO₂ emission factor of anthracite coal	CO₂	Manufacturing and construction industry	98,300	Kg CO₂/TJ	Tier 1
1.26	CH₄ emission factor of anthracite coal	CH₄	Manufacturing and construction industry	10	Kg CH₄/TJ	Tier 1
1.27	N₂O emission factor of anthracite coal	N₂O	Manufacturing and construction industry	1.5	Kg N₂O/TJ	Tier 1
1.28	CO₂ emission factor of diesel oil	CO₂	Manufacturing and construction industry	74,100	Kg CO₂/TJ	Tier 1
1.29	CH₄ emission factor of diesel oil	CH₄	Manufacturing and construction industry	3	Kg CH₄/TJ	Tier 1
1.30	N₂O emission factor of diesel oil	N₂O	Manufacturing and construction industry	0.6	Kg N₂O/TJ	Tier 1
1.31	CO₂ emission factor of fuel oil	CO₂	Manufacturing and construction industry	77,400	Kg CO₂/TJ	Tier 1
1.32	CH₄ emission factor of fuel oil	CH₄	Manufacturing and construction industry	3	Kg CH₄/TJ	Tier 1
1.33	N₂O emission factor of fuel oil	N₂O	Manufacturing and construction industry	0.6	Kg N₂O/TJ	Tier 1
1.34	CO₂ emission factor of liquefied petroleum gas	CO₂	Manufacturing and construction industry	63,100	Kg CO₂/TJ	Tier 1
1.35	CH₄ emission factor of liquefied petroleum gas	CH₄	Manufacturing and construction industry	1	Kg CH₄/TJ	Tier 1
1.36	N₂O emission factor of liquefied petroleum gas	N₂O	Manufacturing and construction industry	0.1	Kg N₂O/TJ	Tier 1
1.37	CO₂ emission factor of natural gas	CO₂	Manufacturing and construction industry	56,100	Kg CO₂/TJ	Tier 1
1.38	CH₄ emission factor of natural gas	CH₄	Manufacturing and construction industry	1	Kg CH₄/TJ	Tier 1
1.39	N₂O emission factor of natural gas	N₂O	Manufacturing and construction industry	0.1	Kg N₂O/TJ	Tier 1
1.40	CH₄ emission factor of biomass	CH₄	Manufacturing and construction industry	30	Kg CH₄/TJ	Tier 1
1.41	N₂O emission factor of biomass	N₂O	Manufacturing and construction industry	4	Kg N₂O/TJ	Tier 1
1.42	CO₂ emission factor of jet kerosene	CO₂	Domestic air transportation	71,500	Kg CO₂/TJ	Tier 1
1.43	CO₂ emission factor of aviation gasoline	CO₂	Domestic air transportation	70,000	Kg CO₂/TJ	Tier 1
1.44	CH₄ emission factor of all fuels	CH₄	Domestic air transportation	0.5	Kg CH₄/TJ	Tier 1
1.45	N₂O emission factor of all fuels	N₂O	Domestic aviation	2	Kg N₂O/TJ	Tier 1
1.46	CO₂ emission factor of diesel oil	CO₂	Road transportation	74,100	Kg CO₂/TJ	Tier 1
1.47	CH₄ emission factor of diesel oil	CH₄	Road transportation	3.9	Kg CH₄/TJ	Tier 1
1.48	N₂O emission factor of diesel oil	N₂O	Road transportation	3.9	Kg N₂O/TJ	Tier 1
1.49	CO₂ emission factor of gasoline	CO₂	Road transportation	69,300	Kg CO₂/TJ	Tier 1
1.50	CH₄ emission factor of gasoline	CH₄	Road transportation	33	Kg CH₄/TJ	Tier 1
1.51	N₂O emission factor of gasoline	N₂O	Road transportation	3.2	Kg N₂O/TJ	Tier 1
1.52	CO₂ emission factor of liquefied petroleum gas	CO₂	Road transportation	63,100	Kg CO₂/TJ	Tier 1
1.53	CH₄ emission factor of liquefied petroleum gas	CH₄	Road transportation	62	Kg CH₄/TJ	Tier 1
1.54	N₂O emission factor of liquefied petroleum gas	N₂O	Road transportation	0.2	Kg N₂O/TJ	Tier 1
1.55	CO₂ emission factor of natural gas	CO₂	Road transportation	56,100	Kg CO₂/TJ	Tier 1
1.56	CH₄ emission factor of natural gas	CH₄	Road transportation	92	Kg CH₄/TJ	Tier 1
1.57	N₂O emission factor of natural gas	N₂O	Road transportation	3	Kg N₂O/TJ	Tier 1
1.58	CO₂ emission factor of diesel oil	CO₂	Railways	74,100	Kg CO₂/TJ	Tier 1
1.59	CH₄ emission factor of diesel oil	CH₄	Railways	4.15	Kg CH₄/TJ	Tier 1
1.60	N₂O emission factor of diesel oil	N₂O	Railways	28.6	Kg N₂O/TJ	Tier 1
1.61	CO₂ emission factor of diesel oil	CO₂	Inland waterway and maritime transportation	74,100	Kg CO₂/TJ	Tier 1
1.62	CH₄ emission factor of diesel oil	CH₄	Inland waterway and maritime transportation	7	Kg CH₄/TJ	Tier 1
1.63	N₂O emission factor of diesel oil	N₂O	Inland waterway and maritime transportation	2	Kg N₂O/TJ	Tier 1
1.64	CO₂ emission factor of fuel oil	CO₂	Inland waterway and maritime transportation	77,400	Kg CO₂/TJ	Tier 1
1.65	CH₄ emission factor of fuel oil	CH₄	Inland waterway and maritime transportation	7	Kg CH₄/TJ	Tier 1
1.66	N₂O emission factor of fuel oil	N₂O	Inland waterway and maritime transportation	2	Kg N₂O/TJ	Tier 1
1.67	CO₂ emission factor of anthracite coal	CO₂	Trade and services	98,300	Kg CO₂/TJ	Tier 1
1.68	CH₄ emission factor of anthracite coal	CH₄	Trade and services	10	Kg CH₄/TJ	Tier 1
1.69	N₂O emission factor of anthracite coal	N₂O	Trade and services	1.5	Kg N₂O/TJ	Tier 1
1.70	CO₂ emission factor of diesel oil	CO₂	Trade and services	74,100	Kg CO₂/TJ	Tier 1
1.71	CH₄ emission factor of diesel oil	CH₄	Trade and services	10	Kg CH₄/TJ	Tier 1
1.72	N₂O emission factor of diesel oil	N₂O	Trade and services	0.6	Kg N₂O/TJ	Tier 1
1.73	CO₂ emission factor of liquefied petroleum gas	CO₂	Trade and services	63,100	Kg CO₂/TJ	Tier 1
1.74	CH₄ emission factor of liquefied petroleum gas	CH₄	Trade and services	5	Kg CH₄/TJ	Tier 1
1.75	N₂O emission factor of liquefied petroleum gas	N₂O	Trade and services	0.1	Kg N₂O/TJ	Tier 1
1.76	CO₂ emission factor of charcoal	CO₂	Trade and services	112,000	Kg CO₂/TJ	Tier 1
1.77	CH₄ emission factor of charcoal	CH₄	Trade and services	200	Kg CH₄/TJ	Tier 1
1.78	N₂O emission factor of charcoal	N₂O	Trade and services	1	Kg N₂O/TJ	Tier 1
1.79	CO₂ emission factor of anthracite coal	CO₂	Civil	98,300	Kg CO₂/TJ	Tier 1
1.80	CH₄ emission factor of anthracite coal	CH₄	Civil	300	Kg CH₄/TJ	Tier 1
1.81	N₂O emission factor of anthracite coal	N₂O	Civil	1.5	Kg N₂O/TJ	Tier 1
1.82	CO₂ emission factor of kerosene	CO₂	Civil	71,900	Kg CO₂/TJ	Tier 1
1.83	CH₄ emission factor of kerosene	CH₄	Civil	10	Kg CH₄/TJ	Tier 1
1.84	N₂O emission factor of kerosene	N₂O	Civil	0.6	Kg N₂O/TJ	Tier 1
1.85	CO₂ emission factor of liquefied petroleum gas	CO₂	Civil	63,100	Kg CO₂/TJ	Tier 1
1.86	CH₄ emission factor of liquefied petroleum gas	CH₄	Civil	5	Kg CH₄/TJ	Tier 1
1.87	N₂O emission factor of liquefied petroleum gas	N₂O	Civil	0.1	Kg N₂O/TJ	Tier 1
1.88	CO₂ emission factor of biomass	CO₂	Civil	100,000	Kg CO₂/TJ	Tier 1
1.89	CH₄ emission factor of biomass	CH₄	Civil	300	Kg CH₄/TJ	Tier 1
1.90	N₂O emission factor of biomass	N₂O	Civil	4	Kg N₂O/TJ	Tier 1
1.91	CO₂ emission factor of charcoal	CO₂	Civil	112,000	Kg CO₂/TJ	Tier 1
1.92	CH₄ emission factor of charcoal	CH₄	Civil	200	Kg CH₄/TJ	Tier 1
1.93	N₂O emission factor of charcoal	N₂O	Civil	1	Kg N₂O/TJ	Tier 1
1.94	CO₂ emission factor of gasoline	CO₂	Agriculture, forestry and fisheries	69,300	Kg CO₂/TJ	Tier 1
1.95	CH₄ emission factor of gasoline	CH₄	Agriculture, forestry and fisheries	10	Kg CH₄/TJ	Tier 1
1.96	N₂O emission factor of gasoline	N₂O	Agriculture, forestry and fisheries	0.6	Kg N₂O/TJ	Tier 1
1.97	CO₂ emission factor of diesel oil	CO₂	Agriculture, forestry and fisheries	74,100	Kg CO₂/TJ	Tier 1
1.98	CH₄ emission factor of diesel oil	CH₄	Agriculture, forestry and fisheries	10	Kg CH₄/TJ	Tier 1
1.99	N₂O emission factor of diesel oil	N₂O	Agriculture, forestry and fisheries	0.6	Kg N₂O/TJ	Tier 1
1,100	CH₄ emission factor of biomass	CH₄	Agriculture, forestry and fisheries	300	Kg CH₄/TJ	Tier 1
1,101	N₂O emission factor of biomass	N₂O	Agriculture, forestry and fisheries	4	Kg N₂O/TJ	Tier 1
2	Emissions due to dispersion
2.1	CH₄ dispersion factor in underground coal mining*	CH₄	Underground coal mining	1.5789	m³CH₄/ton	Tier 2
2.2	CH₄ dispersion factor after underground coal mining*	CH₄	Underground coal mining	0.1697	m³CH₄/ton	Tier 2
2.3	CH₄ dispersion factor in open-pit coal mining*	CH₄	Open-pit coal mining	0.05375	m³CH₄/ton	Tier 2
2.4	CH₄ dispersion factor after open-pit coal mining*	CH₄	Open-pit coal mining	0.1697	m³CH₄/ton	Tier 2
2.5	CO₂ emission factor leaked from oil production	CO₂	Oil extraction	0.00215	Thousand tons of CO₂/10³m³ of total oil products	Tier 1
2.6	CH₄ emission factor leaked from oil production	CH₄	Oil extraction	0.01035	Thousand tons of CH₄/10³m³ of total oil products	Tier 1
2.7	CO₂ emission factor due to natural combustion from oil production	CO₂	Oil extraction	0.0405	Thousand tons of CO₂/10³m³ of total oil products	Tier 1
2.8	CH₄ emission factor due to natural combustion from oil production	CH₄	Oil extraction	0.000025	Thousand tons of CH₄/10³m³ of total oil products	Tier 1
2.9	N₂O emission factor due to natural combustion in oil production	N₂O	Oil extraction	0.00000064	Thousand tons/10³m³ of total oil products	Tier 1
2.10	CO₂ emission factor released in oil production	CO₂	Oil extraction	0.00249	Thousand tons of CO₂/10³m³ of total oil products	Tier 1
2.11	CH₄ emission factor released in oil production	CH₄	Oil extraction	0.0196	Thousand tons of CH₄/10³m³ of total oil products	Tier 1
2.12	CO₂ emission factor leaked in gas treatment	CO₂	Natural gas extraction	0.0675	Thousand tons of CO₂/10⁶m³ of total input raw gas	Tier 1
2.13	CO₂ emission factor due to natural combustion in gas treatment	CO₂	Natural gas extraction	0.00355	Thousand tons of CO₂/10⁶m³ of total gas products	Tier 1
2.14	CH₄ emission factor due to natural combustion in gas treatment	CH₄	Natural gas extraction	0.0000024	Thousand tons of CH₄/10⁶m³ of total gas products	Tier 1
2.15	CH₄ emission factor due to natural combustion in gas treatment	N₂O	Natural gas extraction	3,9E-08	Thousand tons of N₂O/10⁶m³ of total gas products	Tier 1
2.16	CO₂ emission factor due to natural combustion in gas production	CO₂	Natural gas extraction	0.0014	Thousand tons of CO₂/10⁶m³ of total gas products	Tier 1
2.17	CH₄ emission factor due to natural combustion in gas production	CH₄	Natural gas extraction	0.00000088	Thousand tons of CH₄/10⁶m³ of total gas products	Tier 1
2.18	N₂O emission factor due to natural combustion in gas production	N₂O	Natural gas extraction	2,5E-08	Thousand tons of N₂O/10⁶m³ of total gas products	Tier 1
2.19	CO₂ emission factor released in gas production	CO₂	Natural gas extraction	0.000097	Thousand tons of CO₂/10⁶m³ of total gas products	Tier 1
2.20	CH₄ emission factor released in gas production	CH₄	Natural gas extraction	0.01219	Thousand tons of CH₄/10⁶m³ of total gas products	Tier 1
2.21	CO₂ emission factor released in gas treatment	CO₂	Natural gas extraction	0.00025	Thousand tons of CO₂/10⁶m³ of total input raw gas products	Tier 1
2.22	CH₄ emission factor released in gas treatment	CH₄	Natural gas extraction	0.00079	Thousand tons of CH₄/10⁶m³ of total input raw gas products	Tier 1

(*): Country-specific greenhouse gas emission factor.

APPENDIX II

LIST OF EMISSION FACTORS FOR GREENHOUSE GAS INVENTORY - INDUSTRIAL PROCESSES AND PRODUCT USE
(Attached to Decision No. 2626/QD-BTNMT dated October 10, 2022, of the Minister of Natural Resources and Environment)

No.	Name of greenhouse gas emission factor	Type of greenhouse gas emission	Emission source	Value	Unit	Method applied under IPCC Guidelines
1	Mineral industry
1.1	CO₂ emission factor of clinker production mix²	CO₂	Cement production process	0.525	Tons of Co2/ton₂/ton of clinker	Tier 1
1.2	Content of CaO/clinker	CO₂	Cement production process	65	%	Tier 1
1.3	CKD correction factor	CO₂	Cement production process	1.02	-	Tier 1
1.4	CO₂ emission factor of raw materials for producing quicklime with high calcium content (% CaO: 93-98, % MgO: 0.3-2.5)	CO₂	Lime production process	0.75	Tons of CO₂/ton of lime	Tier 1
1.5	CO₂ emission factor of raw materials for producing dolomite quicklime (% CaO: 55-57; % MgO: 38-41)	CO₂	Lime production process	0.77	Tons of CO₂/ton of lime	Tier 1
1.6	CO₂ emission factor of glass production process	CO₂	Glass production process	0.21	Tons of CO₂/ton of float glass	Tier 1
2	Chemical industry
2.1	Coal consumption factor of partial oxidation technology	CO₂	Ammonia production process	42.5	GJ/ton NH₃	Tier 1
2.2	Natural gas consumption factor of gas processing technology	CO₂	Ammonia production process	37.5	GJ/ton NH₃	Tier 1
2.3	Factor of carbon content in coal of partial oxidation technology	CO₂	Ammonia production process	21	Kg C/GJ	Tier 1
2.4	Factor of carbon content in natural gas of gas processing technology	CO₂	Ammonia production process	15.30	Kg C/GJ	Tier 1
2.5	Carbon oxidation rate of partial oxidation technology	CO₂	Ammonia production process	1	-	Tier 1
2.6	Carbon oxidation rate of gas processing technology	CO₂	Ammonia production process	1	-	Tier 1
2.7	N₂O emission factor for HNO₃ production process with medium pressure technology	N₂O	Acid nitric production process	8	Kg N₂O/ton HNO₃	Tier 1
3	Metallurgy
3.1	CO₂ emission factor with BOF blower technology*	CO₂	Iron and steel production process	2.47	Tons of CO₂/ton of crude steel	Tier 2
3.2	CO₂ emission factor with EAF electric arc furnace technology*	CO₂	Iron and steel production process	0.06	Tons of CO₂/ton of crude steel	Tier 2

(*): Country-specific greenhouse gas emission factor.

APPENDIX III

LIST OF EMISSION FACTORS FOR GREENHOUSE GAS INVENTORY - AGRICULTURE, FORESTRY AND OTHER LAND USE
(Attached to Decision No. 2626/QD-BTNMT dated October 10, 2022, of the Minister of Natural Resources and Environment)

No.	Name of greenhouse gas emission factor	Type of greenhouse gas emission	Emission source	Value	Unit	Method applied under IPCC Guidelines
1	Breed
1.1	CH₄ emission factor of dairy cow	CH₄	Food digestion	78	Kg CH₄/livestock/year	Tier 1
1.2	CH₄ emission factor of beef cattle	CH₄	Food digestion	54	Kg CH₄/livestock/year	Tier 1
1.3	CH₄ emission factor of buffalo	CH₄	Food digestion	76	Kg CH₄/livestock/year	Tier 1
1.4	CH₄ emission factor of sheep	CH₄	Food digestion	5	Kg CH₄/livestock/year	Tier 1
1.5	CH₄ emission factor of goat	CH₄	Food digestion	5	Kg CH₄/livestock/year	Tier 1
1.6	CH₄ emission factor of horse	CH₄	Food digestion	18	Kg CH₄/livestock/year	Tier 1
1.7	CH₄ emission factor of pig	CH₄	Food digestion	1	Kg CH₄/livestock/year	Tier 1
1.8	Excretion rate of volatile solids from dairy cow waste	CH₄	Livestock manure management	8.1	Kg/1000kg/day	Tier 2
1.9	Maximum ability to produce CH₄ from dairy cow waste	CH₄	Livestock manure management	0.13	m³CH₄/kg of volatile solids (VS)	Tier 2
1.10	Excretion rate of volatile solids from beef cattle waste	CH₄	Livestock manure management	11.3	Kg/1000kg/day	Tier 2
1.11	Maximum ability to produce CH₄ from beef cattle waste	CH₄	Livestock manure management	0.13	m³CH₄/kg VS	Tier 2
1.12	Excretion rate of volatile solids from buffalo waste	CH₄	Livestock manure management	13.1	Kg/1000kg/day	Tier 2
1.13	Maximum ability to produce CH₄ from buffalo waste	CH₄	Livestock manure management	0.10	m³CH₄/kg VS	Tier 2
1.14	Excretion rate of volatile solids from sheep waste	CH₄	Livestock manure management	8.30	Kg/1000 kg/day	Tier 2
1.15	Maximum ability to produce CH₄ from sheep waste	CH₄	Livestock manure management	0.13	m³CH₄/kg VS	Tier 2
1.16	Excretion rate of volatile solids from goat waste	CH₄	Livestock manure management	10.40	Kg/1000kg/day	Tier 2
1.17	Maximum ability to produce CH₄ from goat waste	CH₄	Livestock manure management	0.13	m³CH₄/kg VS	Tier 2
1.18	Excretion rate of volatile solids from horse waste	CH₄	Livestock manure management	7.20	Kg/1000 kg/day	Tier 2
1.19	Maximum ability to produce CH₄ from horse waste	CH₄	Livestock manure management	0.26	m³CH₄/kg VS	Tier 2
1.20	Excretion rate of volatile solids from pig waste	CH₄	Livestock manure management	5.80	Kg/1000 kg/day	Tier 2
1.21	Maximum ability to produce CH₄ from pig waste	CH₄	Livestock manure management	0.29	m³CH₄/kg VS	Tier 2
1.22	Excretion rate of volatile solids from poultry waste	CH₄	Livestock manure management	11.20	Kg/1000 kg/day	Tier 2
1.23	Maximum ability to produce CH₄ from poultry waste	CH₄	Livestock manure management	0.24	m³CH₄/kg VS	Tier 2
1.24	CH₄ conversion factor of livestock waste treated with a composting system for an average temperature range of 15-25°C	CH₄	Livestock manure management	1.00	%	Tier 2
1.25	CH₄ conversion factor of livestock waste treated with aerobic treatment systems for an average temperature range of 15-25°C	CH₄	Livestock manure management	0.0	%	Tier 2
1.26	CH₄ conversion factor of 15-25°C bio-buffer system	CH₄	Livestock manure management	1.50	%	Tier 2
1.27	CH₄ conversion factor of livestock waste treated by anaerobic digester system for an average temperature range of 15-25°C	CH₄	Livestock manure management	12.97	%	Tier 2
1.28	CH₄ conversion of livestock manure treated with 15-25°C pasture and grazing system	CH₄	Livestock manure management	1.50	%	Tier 2
1.29	CH₄ conversion factor of livestock waste treated with a composting system for an average temperature above 25°C	CH₄	Livestock manure management	1.50	%	Tier 2
1.30	CH₄ conversion factor of livestock waste treated with aerobic treatment systems for an average temperature above 25°C	CH₄	Livestock manure management	0.0	%	Tier 2
1.31	CH₄ conversion factor of livestock waste treated with bio-buffer system for an average temperature above 25°C	CH₄	Livestock manure management	1.50	%	Tier 2
1.32	CH₄ conversion factor of livestock waste treated by anaerobic digester system for an average temperature above 25°C	CH₄	Livestock manure management	13.17	%	Tier 2
1.33	CH₄ conversion of livestock manure treated with pasture and grazing system for an average temperature above 25°C	CH₄	Livestock manure management	2.00	%	Tier 2
1.34	N excretion rate of dairy cow	N₂O	Livestock manure management (N₂O direct emission)	0.47	Kg N/1000 kg of weight/day	Tier 2
1.35	N excretion rate of beef cattle	N₂O	Livestock manure management (N₂O direct emission)	0.34	Kg N/1000 kg of weight/day	Tier 2
1.36	N excretion rate of buffalo	N₂O	Livestock manure management (N₂O direct emission)	0.32	Kg N/1000 kg of weight/day	Tier 2
1.37	N excretion rate of sheep	N₂O	Livestock manure management (N₂O direct emission)	1.17	Kg N/1000 kg of weight/day	Tier 2
1.38	N excretion rate of goat	N₂O	Livestock manure management (N₂O direct emission)	1.37	Kg N/1000 kg of weight/day	Tier 2
1.39	N excretion rate of horse	N₂O	Livestock manure management (N₂O direct emission)	0.46	Kg N/1000 kg of weight/day	Tier 2
1.40	N excretion rate of pig	N₂O	Livestock manure management (N₂O direct emission)	0.42	Kg N/1000 kg of weight/day	Tier 2
1.41	N excretion rate of poultry	N₂O	Livestock manure management (N₂O direct emission)	1.1	Kg N/1000 kg of weight/day	Tier 2
1.42	Emission factor of livestock manure treated by composting system for fertilizer	N₂O	Livestock manure management (N₂O direct emission)	0.01	Kg N₂O-N/kg N	Tier 2
1.43	Emission factor of livestock manure treated by aerobic treatment system	N₂O	Livestock manure management (N₂O direct emission)	0.01	Kg N₂O-N/kg N	Tier 2
1.44	Emission factor of livestock manure treated by bio-buffer system	N₂O	Livestock manure management (N₂O direct emission)	0.001	Kg N₂O-N/kg N	Tier 2
1.45	Emission factor of livestock manure treated by anaerobic digester system	N₂O	Livestock manure management (N₂O direct emission)	0	Kg N₂O-N/kg N	Tier 2
2	Land
2.1	Carbon stocks in the above-ground forest biomass	CO₂	Forest land remaining forest land	0.47	t-C/t-d.m	Tier 2, Increase-Decrease Method
2.2	Biomass conversion and expansion factor (BCEFi) of natural timber forest	CO₂	Forest land remaining forest land	0.87	t-d.m/m³	Tier 2, Increase-Decrease Method
2.3	BCEFi of bamboo forest	CO₂	Forest land remaining forest land	0.93	t-d.m/m³	Tier 2, Increase-Decrease Method
2.4	BCEFi of mixed forest	CO₂	Forest land remaining forest land	0.87	t-d.m/m³	Tier 2, Increase-Decrease Method
2.5	BCEFi of mangrove forest	CO₂	Forest land remaining forest land	0.87	t-d.m/m³	Tier 2, Increase-Decrease Method
2.6	CO₂ emission factor for drained organic soil of managed forest land	CO₂	Forest land remaining forest land	1.36	tC/ha/year	Tier 1
2.7	Above-ground biomass carbon before conversion of annual cropland	CO₂	Cropland converted to other land use classifications	4.7	tC/ha	Tier 1
2.8	Above-ground biomass carbon before conversion of perennial cropland	CO₂	Cropland converted to other land use classifications	21	tC/ha	Tier 1
2.9	Biomass before conversion of grassland	CO₂	Land converted to forest land/cropland/wetland, residential land, other land	3.65	t-d.m/ha	Tier 1
2.10	Biomass carbon on annual cropland after one year	CO₂	Land converted to cropland	4.7	tC/ha/year	Tier 1
2.11	CO₂ emission factor for cultivated organic soil	CO₂	Cropland remaining cropland/Land converted to cropland	20	tC/ha/year	Tier 1
2.12	Biomass carbon on perennial cropland after one year	CO₂	Land converted to cropland	2.60	tC/ha/year	Tier 1
2.13	CO₂ emission factor for drained organic grassland	CO₂	Grassland remaining grassland/Land converted to grassland	5	tC/ha/year	Tier 1
3	Other emission sources and emissions other than CO₂
3.1	Biomass burning factor	CH₄, N₂O	Emissions from biomass burning in forest land/land converted to other land	0.55	-	Tier 1
3.2	CH₄ emission factor of burnt dry matter	CH₄	Emissions from biomass burning in forest land/forest land converted to other land	6.80	g/kgdm	Tier 1
3.3	N₂O emission factor of burnt dry matter	N₂O	Emissions from biomass burning in forest land/forest land converted to other land	0.20	g/kgdm	Tier 1
3.4	CH₄ emission factor of burnt dry matter	CH₄	Emissions from burning biomass from agricultural by-products in the field	2.70	g/kgdm	Tier 1
3.5	N₂O emission factor of burnt dry matter	N₂O	Emissions from burning biomass from agricultural by-products in the field	0.07	g/kgdm	Tier 1
3.6	CH₄ emission factor of burnt dry matter	CH₄	Emissions from burning grassland	2.30	g/kgdm	Tier 1
3.7	N₂O emission factor of burnt dry matter	N₂O	Emissions from burning grassland	0.21	g/kgdm	Tier 1
3.8	CO₂ emission factor of calcium lime	CO₂	Lime used in agricultural cultivation	0.12	Ton C/ton of calcium lime	Tier 1
3.9	CO₂ emission factor of dolomite lime	CO₂	Lime used in agricultural cultivation	0.13	Ton C/ton of dolomite lime	Tier 1
3.10	CO₂ emission factor of nitrogen fertilizer use	CO₂	Urea fertilizer used in agricultural cultivation	0.20	Ton C/ton of urea	Tier 1
3.11	Factor for estimating the amount of N from fertilizers, livestock manure, and agricultural by-products (EF₁)	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.01	Kg N₂O-N/ (kg N)	Tier 1
3.12	Factor for estimating the amount of N from grazing for cattle (cow, dairy cow, buffalo), poultry, pig (EF_3PRP)	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.02	Kg N₂O-N/ (kg N)	Tier 1
3.13	Factor for estimating the amount of N from grazing for sheep and other animals (EF_3PRP)	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.01	Kg N₂O-N/ (kg N)	Tier 1
3.14	N₂O-N emission factor from spring/winter-spring rice in the North*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.34	% kg N₂O-N/kg N fertilizer	Tier 2
3.15	N₂O-N emission factor from summer-autumn/rice crop in the North*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.25	% kg N₂O-N/kg N fertilizer	Tier 2
3.16	N₂O-N emission factor from spring/winter-spring rice in the Central region*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.24	% kg N₂O-N/kg N fertilizer	Tier 2
3.17	N₂O-N emission factor from summer-autumn/rice crop in the Central region*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.17	% kg N₂O-N/kg N fertilizer	Tier 2
3.18	N₂O-N emission factor from spring/winter-spring rice in the South*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.15	% kg N₂O-N/kg N fertilizer	Tier 2
3.19	N₂O-N emission factor from summer-autumn/rice crop in the South*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.20	% kg N₂O-N/kg N fertilizer	Tier 2
3.20	N₂O-N emission factor from autumn-winter rice crop in the South*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.17	% kg N₂O-N/kg N fertilizer	Tier 2
3.21	N₂O-N³ emission factor from corn land*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	0.98	% kg N₂O-N/kg N fertilizer	Tier 2
3.22	N₂O-N⁴ emission factor from cassava land*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	1.52	% kg N₂O-N/kg N fertilizer	Tier 2
3.23	N₂O-N⁵ emission factor from sugarcane land*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	1.40	% kg N₂O-N/kg N fertilizer	Tier 2
3.24	N₂O-N⁶ emission factor from coffee land*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	1.76	% kg N₂O-N/kg N fertilizer	Tier 2
3.25	N₂O-N⁷ emission factor from rubber plantation*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	2.02	% kg N₂O-N/kg N fertilizer	Tier 2
3.26	N₂O-N⁸ emission factor from tea plantation*	N₂O	Emissions from agricultural by-products, livestock manure, pasture/grazing wastes	1.71	% kg N₂O-N/kg N fertilizer	Tier 2
3.27	N₂O emission factor for forest land (EF_2F)	N₂O	Direct emission of N₂O from organic soil	8	Kg N₂O-N/ha	Tier 1
3.28	N₂O emission factor for cropland and grassland (EF_2CG)	N₂O	Direct emission of N₂O from organic soil	16	Kg N₂O-N/ (kg N)	Tier 1
3.29	N₂O emission factor due to evaporation (EF₄)	N₂O	Indirect emissions from land/from waste management	0.01	Kg N₂O-N/(kg NH₃-N + NO_x-N due to evaporation)	Tier 1
3.30	N₂O emission factor due to leaching and leakage (EF₅)	N₂O	Indirect emissions from land/from waste management	0.0075	Kg N₂O-N/(kg N washed out and leaked)	Tier 1
3.31	Scale factor to calculate the difference in water management regime before cultivation (SF_p)	CH₄	Rice cultivation	1.00	-	Tier 1
3.32	Ratio factor of water regime during cultivation period (SFw) for upland rice	CH₄	Rice cultivation	0	-	Tier 1
3.33	Ratio factor of water regime during cultivation period (SFw) for regularly flooded rice	CH₄	Rice cultivation	1	-	Tier 1
3.34	Ratio factor of water regime during cultivation period (SFw) for intermittently flooded rice (dried once)	CH₄	Rice cultivation	0.71	-	Tier 1
3.35	Ratio factor of water regime during cultivation period (SFw) for intermittently flooded rice (repeatedly dried)	CH₄	Rice cultivation	0.55	-	Tier 1
3.36	Ratio factor of water regime during cultivation period (SFw) for rice irrigated by rain	CH₄	Rice cultivation	0.54	-	Tier 1
3.37	Conversion factor of organic amendment (CFOA) for straw mixed shortly (<30 days) before planting	CH₄	Rice cultivation	1.0	-	Tier 1
3.38	Conversion factor of organic amendment (CFOA) of straw mixed for a long time (>30 days) before planting	CH₄	Rice cultivation	0.19	-	Tier 1
3.39	Rate of organic amendment by dry weight (ROA) of spring/winter-spring rice in the North*	CH₄	Rice cultivation	0.76	Ton/ha	Tier 2
3.40	Rate of organic amendment by dry weight (ROA) of summer-autumn/rice crop in the North*	CH₄	Rice cultivation	3.72	Ton/ha	Tier 2
3.41	Rate of organic amendment by dry weight (ROA) of spring/winter-spring rice in the Central region*	CH₄	Rice cultivation	0.00	Ton/ha	Tier 2
3.42	Rate of organic amendment by dry weight (ROA) of summer-autumn/rice crop in the Central region*	CH₄	Rice cultivation	0.35	Ton/ha	Tier 2
3.43	Rate of organic amendment by dry weight (ROA) of spring/winter-spring rice in the South*	CH₄	Rice cultivation	0.43	Ton/ha	Tier 2
3.44	Rate of organic amendment by dry weight (ROA) of summer-autumn/rice crop in the South*	CH₄	Rice cultivation	0.43	Ton/ha	Tier 2
3.45	Rate of organic amendment by dry weight (ROA) of autumn-winter rice crop in the South*	CH₄	Rice cultivation	0.45	Ton/ha	Tier 2
3.46	Rate of organic amendment by dry weight (ROA) of spring/winter-spring rice in the North*	CH₄	Rice cultivation	0.57	Ton/ha	Tier 2
3.47	CH₄ emission factor of spring/winter-spring rice in the North*	CH₄	Rice cultivation	1.61	Kg CH₄/ha/day	Tier 2
3.48	CH₄ emission factor of summer-autumn/rice crop in the North*	CH₄	Rice cultivation	3.43	Kg CH₄/ha/day	Tier 2
3.49	CH₄ emission factor of spring/winter-spring rice in the Central region*	CH₄	Rice cultivation	1.92	Kg CH₄/ha/day	Tier 2
3.50	CH₄ emission factor of summer-autumn/rice crop in the Central region*	CH₄	Rice cultivation	1.91	Kg CH₄/ha/day	Tier 2
3.51	CH₄ emission factor of spring/winter-spring rice in the South*	CH₄	Rice cultivation	1.95	Kg CH₄/ha/day	Tier 2
3.52	CH₄ emission factor of summer-autumn/rice crop in the South*	CH₄	Rice cultivation	1.83	Kg CH₄/ha/day	Tier 2
3.53	CH₄ emission factor of autumn-winter rice crop in the South*	CH₄	Rice cultivation	2.20	Kg CH₄/ha/day	Tier 2

(*): Country-specific greenhouse gas emission factor.

APPENDIX IV

LIST OF EMISSION FACTORS FOR GREENHOUSE GAS INVENTORY - WASTE
(Attached to Decision No. 2626/QD-BTNMT dated October 10, 2022, of the Minister of Natural Resources and Environment)

No.	Name of greenhouse gas emission factor	Type of greenhouse gas emission	Emission source	Value	Unit	Method applied under IPCC Guidelines
1	Solid waste landfill
1.1	Methane correction factor (MCF) of unmanaged - depth landfill (depth of 5m or more)	CH₄	Emissions from solid waste landfill	0.80	-	Tier 2
1.2	Methane correction factor (MCF) of unmanaged - shallow landfill (depth of less than 5m)	CH₄	Emissions from solid waste landfill	0.40	-	Tier 2
1.3	Methane correction factor (MCF) of managed - anaerobic landfill	CH₄	Emissions from solid waste landfill	1.00	-	Tier 2
1.4	Methane correction factor (MCF) of well-managed - semi-aerobic landfill	CH₄	Emissions from solid waste landfill	0.50	-	Tier 2
1.5	Methane correction factor (MCF) of poorly managed - semi-aerobic landfill	CH₄	Emissions from solid waste landfill	0.7	-	Tier 2
1.6	Methane correction factor (MCF) of well-managed - continuous aeration landfill	CH₄	Emissions from solid waste landfill	0.4	-	Tier 2
1.7	Methane correction factor (MCF) of poorly managed - continuous aeration landfill	CH₄	Emissions from solid waste landfill	0.7	-	Tier 2
1.8	Methane correction factor (MCF) of the remaining landfill	CH₄	Emissions from solid waste landfill	0.6	-	Tier 2
1.9	Dissolved organic carbon (DOC) of feed, organic matter	CH₄	Emissions from solid waste landfill	15	%	Tier 2
1.10	Dissolved organic carbon (DOC) of plants	CH₄	Emissions from solid waste landfill	20	%	Tier 2
1.11	Dissolved organic carbon (DOC) of paper	CH₄	Emissions from solid waste landfill	40	%	Tier 2
1.12	Dissolved organic carbon (DOC) of wood	CH₄	Emissions from solid waste landfill	43	%	Tier 2
1.13	Dissolved organic carbon (DOC) of textiles	CH₄	Emissions from solid waste landfill	24	%	Tier 2
1.14	Dissolved organic carbon (DOC) of diapers	CH₄	Emissions from solid waste landfill	24	%	Tier 2
1.15	Dissolved organic carbon (DOC) of sludge	CH₄	Emissions from solid waste landfill	5	%	Tier 2
1.16	Dissolved organic carbon (DOC) of industrial waste	CH₄	Emissions from solid waste landfill	15	%	Tier 2
1.17	The fraction of DOC decomposing under anaerobic conditions (DOCf) - Non-biodegradable waste: wood, wood products, twigs, etc.	CH₄	Emissions from solid waste landfill	10	%	Tier 2
1.18	The fraction of DOC decomposing under anaerobic conditions (DOCf) - Medium degradable waste: paper, textile products, diapers.	CH₄	Emissions from solid waste landfill	50	%	Tier 2
1.19	The fraction of DOC decomposing under anaerobic conditions (DOCf) - Biodegradable waste: leftovers, grass (garden waste except twigs)	CH₄	Emissions from solid waste landfill	70	%	Tier 2
1.20	The percentage of CH₄ in the gas from the landfill	CH₄	Emissions from solid waste landfill	50	%	Tier 2
2	Biological treatment of solid waste
2.1	Waste treatment by the method of composting - CH₄ emission factor by dry weight	CH₄	Biological treatment of solid waste	10.00	g CH₄/kg dry waste treated	Tier 1
2.2	Waste treatment by the method of composting - CH₄ emission factor by wet weight	CH₄	Biological treatment of solid waste	4.00	gCH₄/kg wet waste treated	Tier 1
2.3	Waste treatment by the method of composting - N₂O emission factor by dry weight	N₂O	Biological treatment of solid waste	0.60	gN₂O/kg dry waste treated	Tier 1
2.4	Waste treatment by the method of composting - N₂O emission factor by wet weight	N₂O	Biological treatment of solid waste	0.24	gN₂O/kg wet waste treated	Tier 1
2.5	Waste treatment by anaerobic digestion at biogas facilities - CH₄ emission factor by dry weight	CH₄	Biological treatment of solid waste	2.00	gCH₄/kg dry waste treated	Tier 1
2.6	Waste treatment by anaerobic digestion at biogas facilities - CH₄ emission factor by wet weight	CH₄	Biological treatment of solid waste	0.80	gCH₄/kg wet waste treated	Tier 1
2.7	Waste treatment by anaerobic digestion at biogas facilities - N₂O emission factor by dry weight	N₂O	Biological treatment of solid waste	Insignificant assumption	gN₂O/kg dry waste treated	Tier 1
2.8	Waste treatment by anaerobic digestion at biogas facilities - N₂O emission factor by wet weight	N₂O	Biological treatment of solid waste	Insignificant assumption	gN₂O/kg wet waste treated	Tier 1
3	Incineration and open-burning of waste
3.1	Dry content according to solid waste composition of plastic	CO₂	Waste incineration (domestic solid waste)	100	%	Tier 1
3.2	Dry content according to solid waste composition of textiles	CO₂	Waste incineration (domestic solid waste)	80	%	Tier 1
3.3	Dry content according to solid waste composition of wood	CO₂	Waste incineration (domestic solid waste)	85	%	Tier 1
3.4	Dry content according to solid waste composition of diapers	CO₂	Waste incineration (domestic solid waste)	40	%	Tier 1
3.5	Dry content according to solid waste composition of food, organic matter	CO₂	Waste incineration (domestic solid waste)	40	%	Tier 1
3.6	Dry content according to solid waste composition of plants	CO₂	Waste incineration (domestic solid waste)	40	%	Tier 1
3.7	Dry content according to solid waste composition of paper	CO₂	Waste incineration (domestic solid waste)	90	%	Tier 1
3.8	Total carbon fraction of plastics (CF)	CO₂	Waste incineration (domestic solid waste)	75	%	Tier 1
3.9	Total carbon fraction of textiles (CF)	CO₂	Waste incineration (domestic solid waste)	50	%	Tier 1
3.10	Total carbon fraction of wood (CF)	CO₂	Waste incineration (domestic solid waste)	50	%	Tier 1
3.11	Total carbon fraction of diaper (CF)	CO₂	Waste incineration (domestic solid waste)	70	%	Tier 1
3.12	Total carbon fraction of food, organic matter (CF)	CO₂	Waste incineration (domestic solid waste)	38	%	Tier 1
3.13	Total carbon fraction of plants (CF)	CO₂	Waste incineration (domestic solid waste)	49	%	Tier 1
3.14	Total carbon fraction of paper (CF)	CO₂	Waste incineration (domestic solid waste)	46	%	Tier 1
3.15	Fossil carbon fraction in total carbon of plastics (FCF)	CO₂	Waste incineration (domestic solid waste)	100	%	Tier 1
3.16	Fossil carbon fraction in total carbon of textiles (FCF)	CO₂	Waste incineration (domestic solid waste)	20	%	Tier 1
3.17	Fossil carbon fraction in total carbon of diapers (FCF)	CO₂	Waste incineration (domestic solid waste)	10	%	Tier 1
3.18	Fossil carbon fraction in total carbon of plants (FCF)	CO₂	Waste incineration (domestic solid waste)	0	%	Tier 1
3.19	Fossil carbon fraction in total carbon of paper (FCF)	CO₂	Waste incineration (domestic solid waste)	1	%	Tier 1
3.20	Oxidation factor OF	CO₂	Waste incineration	100	%	Tier 1
3.21	CH₄ emission factor	CH₄	Waste incineration - Continuous dynamic blister incinerator	0.2	Kg CH₄/Gg wet waste	Tier 1
			Waste incineration - Continuous fluidized bed incinerator	0
			Waste incineration - Semi-continuous dynamic blister incinerator	6
			Waste incineration - Semi-continuous fluidized bed incinerator	188
			Waste incineration - Semi-continuous dynamic blister incinerator - mass incineration	60
			Waste incineration - Fluidized bed incinerator - mass incineration	237
3.22	N₂O emission factor	N₂O	Waste incineration - Continuous dynamic blister incinerator	47	gN₂O/t wet waste	Tier 1
			Waste incineration - Continuous fluidized bed incinerator	67
			Waste incineration - Semi-continuous dynamic blister incinerator	41
			Waste incineration - Semi-continuous fluidized bed incinerator	68
			Waste incineration - Semi-continuous dynamic blister incinerator - mass incineration	56
			Waste incineration - Fluidized bed incinerator - mass incineration	221
3.23	Oxidation factor OF	CO₂	Open-burning of waste	71	%	Tier 1
3.24	CH₄ emission factor	CH₄	Open-burning of waste	6,500	g/t waste by wet weight	Tier 1
3.25	N₂O emission factor	N₂O	Open-burning of waste	150	gN₂O/t	Tier 1
4	Wastewater treatment and discharge
4.1	Maximum CH₄ producing capacity - B0	CH₄	Domestic wastewater treatment and discharge	0.60	Kg CH₄/kgBOD	Tier 1
4.2	Methane correction factor of a centralized, aerobic wastewater treatment system	CH₄	Domestic wastewater treatment and discharge	0.30	-	Tier 1
4.3	Methane correction factor of septic system	CH₄	Domestic wastewater treatment and discharge	0.50	-	Tier 1
4.4	Methane correction factor of untreated domestic wastewater discharged into rivers, lakes and sea	CH₄	Domestic wastewater treatment and discharge	0.10	-	Tier 1
4.5	N₂O emission factor	N₂O	Domestic wastewater treatment and discharge	0.01	Kg N₂O-N/kg-N	Tier 1
4.6	Maximum CH₄ producing capacity - B0	CH₄	Industrial wastewater treatment and discharge	0.25	Kg CH₄/kgCOD	Tier 1
4.7	Methane correction factor of a centralized, aerobic wastewater treatment system	CH₄	Industrial wastewater treatment and discharge	0.30	-	Tier 1
4.8	Methane correction factor for semi-aerobic (shallow anaerobic) treatment system	CH₄	Industrial wastewater treatment and discharge	0.2	-	Tier 1
4.9	Methane correction factor for deep anaerobic system	CH₄	Industrial wastewater treatment and discharge	0.8	-	Tier 1
4.10	Methane correction factor of untreated domestic wastewater discharged into rivers, lakes and sea	CH₄	Industrial wastewater treatment and discharge	0.10	-	Tier 1

--------------------

1 Including energy consumption in transportation; energy consumption in the construction industry; energy consumption in agriculture, forestry and fisheries.

2 During clinker production, limestone is heated to produce CaO and CO₂

3 Amount of nitrogen introduced into corn land

4 Amount of nitrogen introduced into cassava land

5 Amount of nitrogen introduced into sugarcane land

6 Amount of nitrogen introduced into coffee land

7 Amount of nitrogen introduced into rubber plantation

8 Amount of nitrogen introduced into tea plantation

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Decision No. 55/QD-TTg dated January 16, 2024 of the Prime Minister approving the Development Strategy for Vietnam’s Coal Industry through 2030, with a vision toward 2045

Decree No. 68/2022/ND-CP dated September 22, 2022 of the Government defining the functions, tasks, powers and organizational structure of the Ministry of Natural Resources and Environment

Decision No. 896/QD-TTg dated July 26, 2022 of the Prime Minister approving the National Climate Change Strategy through 2050

Decision No. 888/QD-TTg dated July 25, 2022 of the Prime Minister approving the Scheme on tasks and solutions to implement the outcomes of the 26th United Nations Climate Change Conference of the Parties (COP26)