this statute establishes requirements for 815.200 (visible emission limits - violation). Except as specifically provided by an exemption under 815.205 (visible emission limits - exemptions), a vehicle is in violation of 815.200 if the vehicle is required to comply with one of the following standards for visible emissions & the vehicle produces visible emissions that exceed those allowable under the described standard, as follows:

(1) Visible Emission Standard I: this standard is a violated if the vehicle produces any visible emissions that include any gases or particulates, other than uncombined water, which separately or in combination are visible upon release to the outdoor atmosphere

(2) Visible Emission Standard II: this standard is a violated if the vehicle is operated at an elevation described under below & the vehicle produces a visible emission in excess of that allowed under this paragraph. Visible emissions limited under this subsection include any gases or particulates, other than uncombined water, which separately or in combination are visible upon release to the outdoor atmosphere. The limitations on visible emission under this paragraph are limits on the percent of transmitted light that is obscured by the visible emission. A vehicle violates the standards under this subsection if the vehicle does any of the following:

(a) while operated at an elevation of 3,000ft or less, releases emissions that obscure more than 10% of transmitted light. A vehicle is not in violation of this paragraph if the vehicle releases emissions that obscure 40% or less of transmitted light for not longer than seven (7) consecutive seconds

(b) while operated at an elevation of over 3,000ft, releases emissions that obscure more than 20% of transmitted light. A vehicle is not in violation of this paragraph if the vehicle releases emissions that obscure 60% or less of transmitted light for not longer than seven (7) consecutive seconds