“Monitoring system” means any monitoring system that meets the requirements of Env-A 4609, including a continuous emissions monitoring system, a monitoring system having an exception under appendix D of 40 CFR part 75, or an alternative monitoring system.

Source. #9283, INTERIM, eff 10-1-08, EXPIRED: 3-30-09 New. #9444, eff 4-3-09; ss by #10468, eff 1-1-14; ss by #12967, eff 1-1-20 (from Env-A 4602.55)