Requirements for a diesel emission-opacity inspection - licensure as diesel emissions inspection station - licensure as emissions inspector
C.R.S. § 42-4-407
in effect42-4-407. Requirements for a diesel emission-opacity inspection - licensure as diesel emissions inspection station - licensure as emissions inspector. (1) Unless a diesel emissions inspector performs an inspection at a licensed diesel inspection station or self-certification fleet station, as described in section 42-4-414, a diesel emission-opacity inspection shall not be performed and a certification of diesel emissions control shall not be issued; except that a certification of diesel emissions control may be issued for a heavy-duty fleet vehicle maintained in compliance with any rules the commission promulgates under section 42-4-414 (2)(b.5).
(2) No station shall be licensed as a diesel emissions inspection station unless the executive director finds that:
(a) The facilities of the station are of adequate size and the station is properly equipped. Such equipment shall include:
(I) A smoke opacity meter which may be owned or leased and which has been approved as being in good working order by the executive director and has been registered with the department of public health and environment;
(II) Any other equipment or testing devices which are required by rule or regulation of the commission;
(b) The owner or operator of the station has one or more licensed diesel emission inspectors employed or under contract and such inspectors are responsible for all diesel emission-opacity inspections and the issuance of all certifications of emissions control;
(c) Inspection procedures shall be properly conducted and shall include a smoke opacity inspection. For model years 1991 and newer, inspection procedures shall include evaluation of applicable emissions control systems.
(3) Applications for licensure as a diesel inspection station shall be made on forms prescribed by the executive director.
(4) No person shall be licensed as a diesel emissions inspector unless the person has demonstrated necessary skills and competence in the performance of diesel inspection by passing a qualification test developed and administered by the executive director of the department of public health and environment.
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://leg.colorado.gov/sites/default/files/images/olls/crs2024-title-42.docx#42-4-407Fetched: 10/6/2026