{"data":{"id":"us/40-cfr-75.42","jurisdiction":"us","citation":"40 CFR 75.42","heading":"Reliability criteria.","body":"To demonstrate reliability equal to or better than the continuous emission monitoring system, the owner or operator shall demonstrate that the alternative monitoring system is capable of providing valid 1-hr averages for 95.0 percent or more of unit operating hours over a 1-yr period and that the system meets the applicable requirements of appendix B of this part.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 75—CONTINUOUS EMISSION MONITORING","Subpart E—Alternative Monitoring Systems"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"2ee3369c4e45fea99476b7122869ca297723f146d160d5a33564478b4bc531a6","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-75.41","next":"us/40-cfr-75.43"},"notice":"GroundRules: Original legal text. Not legal advice."}