N.H. Code Admin. R. Env-A 807.01
For the purpose of this part, “Certified opacity continuous emission monitoring system” means an opacity continuous emission monitoring (CEM) system that meets all of the requirements of:
Source. (See Revision Note at chapter heading for Env-A 800) #5505 eff 11-15-92; renumbered by #6057-B (formerly Env-A 806), EXPIRED: 11-15-98 New. #6893, INTERIM, eff 11-26-98, EXPIRED: 3-26-99 New. #7788, eff 10-31-02; ss by #9802, eff 10-31-10; ss by #12762, eff 5-1-19