The Western Climate Initiative, including California and several Western States, have proposed a greenhouse gas emission reporting rule that would cover the following industries:
(A) Adipic acid manufacturing
(B) Aluminum production
(C) Ammonia manufacturing
(D) Cement production
(E) Coal mine fugitive emissions (active and abandoned)
(F) Cogeneration
(G) Electricity generation
(H) Electronics Manufacturing
(I) Ferroalloy production
(J) Glass Production and other uses of carbonates
(K) HCFC-22 production
(L) Hydrogen production
(M) Industrial wastewater
(N) Iron and steel production
(O) Lead production
(P) Lime manufacturing
(Q) Magnesium production
(R) Natural gas distribution systems
(S) Nitric acid manufacturing
(T) Nonroad equipment at facilities
(U) Oil and gas production & gas processing
(V) Petrochemical production
(W) Petroleum refineries
(X) Phosphoric acid production
(Y) Pulp and paper manufacturing
(Z) SF6 from electrical equipment
(AA) Soda ash manufacturing
(BB) Stationary fuel combustion
(CC) Zinc production.
Facilities meeting these categories and emitting over 10,000 tons per year of CO2e will be required to report their greenhouse gas emissions. The GHGs that must be reported under this rule are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC), and sulfur hexafluoride (SF6).
This approach may serve as a prelude for the federal greenhouse gas emission reporting rules that will be promulgated by June of 2009 by the US Environmental Protection Agency.

