An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Louisiana SIP: LAC 33:III Ch. 11 Section 1105.A - Smoke from Flaring Shall Not Exceed 20 Percent Opacity

Regulatory Text: 
Louisiana Administrative Code, Title 33 ENVIRONMENTAL QUALITY, Part III Air (LAC 33:III)
Chapter 11.  Control of Emissions of Smoke

§1105. Smoke from Flaring Shall Not Exceed 20 Percent Opacity
§1105 As adopted in the Louisiana Register MM002 LR 33:2084 (October 20, 2007) and submitted to EPA August 14, 2009 [LA039.03] and resubmitted to EPA October 2015 [LA039.05],
Approved by EPA January 28, 2016 (81 FR 04891) effective February 29, 2016 (LAd47), docket EPA-R06-OAR-2012-0434 [LA039].

   A. The emission of smoke from a flare or other similar
device used for burning in connection with pressure valve
releases for control over process upsets shall be controlled so
that the shade or appearance of the emission does not exceed
20 percent opacity (LAC 33:III.1503.D.2, Table 4) for a
combined total of six hours in any 10 consecutive days. If it
appears the emergency cannot be controlled in six hours,
SPOC shall be notified by the emitter in accordance with
LAC 33:I.3923 as soon as possible after the start of the upset
period. Such notification does not imply the administrative
authority will automatically grant an exemption to the
source(s) of excessive emissions.