Regulations last checked for updates: Jan 14, 2026

Title 40 - Protection of Environment last revised: Dec 31, 2026
Appendix - Table S-1 to Subpart S of Part 98—Basic Parameters for the Calculation of Emission Factors for Lime Production
Variable Stoichiometric ratio
SRCaO0.7848
SRMgO1.0918
source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.