“Allowance tracking system (ATS)” means, as applicable based on context, either:
- (a) The system operated and maintained by the U.S. Environmental Protection Agency (EPA) for tracking SO2 allowance use for the acid rain program and for tracking the number of allowances held and used by any person; or
- (b) A system operated and maintained by either EPA or the department for tracking annual NOx allowance use and for tracking the number of allowances held and used by any account holder.
Source. #10002, eff 10-1-11 (from Env-A 2903.08); ss by #12995, eff 2-25-20