CFR › Title 40 › Part 205 › §205.173-140 CFR §205.173-1Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)The exhaust system manufacturer must include in the information supplied to the ultimate purchaser pursuant to § 205.173-4, the following statement:(b)[Reserved](c)All information must be sent to: