{"data":{"id":"us/40-cfr-58.61","jurisdiction":"us","citation":"40 CFR 58.61","heading":"Monitoring other pollutants.","body":"The Administrator may promulgate criteria similar to that referenced in subpart B of this part for monitoring a pollutant for which an NAAQS does not exist. Such an action would be taken whenever the Administrator determines that a nationwide monitoring program is necessary to monitor such a pollutant.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 58—AMBIENT AIR QUALITY SURVEILLANCE","Subpart G—Federal Monitoring"],"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":"30bb5e01b8ba7d88264fac3b70dc248307808250d5553c97590e5d69ee1f26d7","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-58.60","next":"us/40-cfr-appendix-a-to-part-58"},"notice":"GroundRules: Original legal text. Not legal advice."}