Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
Appendix - Table JJ-7 to Subpart JJ of Part 98—Nitrous Oxide Emission Factors (kg N2O-N/kg Kjdl N)
Manure management system component N2O emission factor
Uncovered anaerobic lagoon0
Liquid/Slurry (with crust cover)0.005
Liquid/Slurry (without crust cover)0
Storage pits0.002
Digesters0
Solid manure storage0.005
Dry lots (including feedlots)0.02
High-rise house for poultry (poultry without litter)0.001
Poultry production with litter0.001
Deep bedding for cattle and swine (active mix)0.07
Deep bedding for cattle and swine (no mix)0.01
Manure Composting (in vessel)0.006
Manure Composting (intensive)0.1
Manure Composting (passive)0.01
Manure Composting (static)0.006
Aerobic Treatment (forced aeration)0.005
Aerobic Treatment (natural aeration)0.01
source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.