SACRAMENTO METROPOLITAN AIR QUALITY MANAGEMENT DISTRICT

RULE 401 - RINGELMANN CHART
(Adopted 8-3-77; Amended 4-19-83)


INDEX

100 GENERAL

200 DEFINITIONS (NOT INCLUDED)

300 STANDARDS

400 ADMINISTRATIVE REQUIREMENTS (NOT INCLUDED)

500 MONITORING AND RECORDS (NOT INCLUDED)


100 GENERAL

101 PURPOSE: To limit the discharge of air contaminants into the atmosphere through visible emissions and opacity.

102 EXEMPTIONS: The provisions of this rule shall not apply to:

300 STANDARDS

301 LIMITATIONS: A person shall not discharge into the atmosphere from any single source of emission whatsoever any air contaminant, other than uncombined water vapor, for a period or periods aggregating more than three minutes in any one hour which is: