# COMAR 26.11.08.04: COMAR 26.11.08.04. Visible Emissions

> Maryland · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_04

## Section

- **Citation:** COMAR 26.11.08.04
- **Heading:** COMAR 26.11.08.04. Visible Emissions
- **Jurisdiction:** Maryland
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Code of Maryland Regulations / Title 26 DEPARTMENT OF THE ENVIRONMENT / Subtitle 11 AIR QUALITY / Chapter 08 Control of Incinerators / COMAR 26.11.08.04

## Text

A. In Areas I, II, V, and VI, the following apply:
(1) Except as provided in Regulations .08 and .08-2 of this chapter, a person may not cause or permit the discharge of emissions from any incinerator, other than water in an uncombined form, which is greater than 20 percent opacity;
(2) A person may not cause or permit the discharge of emissions from any hazardous waste incinerator, other than water in an uncombined form, which is visible to human observers.
B. In Areas III and IV, a person may not cause or permit the discharge of emissions from any incinerator or hazardous waste incinerator, other than water in an uncombined form, which is visible to human observers.
C. Exceptions. The requirements of §§A and B of this regulation do not apply to emissions during start-up, or adjustments or occasional cleaning of control equipment if:
(1) The visible emissions are not greater than 40 percent opacity; and
(2) The visible emissions do not occur for more than 6 consecutive minutes in any 60 minute period.
D. The owner or operator of a municipal waste combustor that is required to install and operate a COM is subject to the requirements in COMAR 26.11.01.10 .
Cross References 26.11.01.10B(6)(a) 26.11.01.10B(6)(b) 26.13.05.16F(4)(a)

## Nearby sections

- [COMAR 26.11.08.01 COMAR 26.11.08.01. Definitions](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_01.md)
- [COMAR 26.11.08.02 COMAR 26.11.08.02. Applicability](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_02.md)
- [COMAR 26.11.08.03 COMAR 26.11.08.03. Prohibition of Certain Incinerators in Areas III and IV](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_03.md)
- [COMAR 26.11.08.04 COMAR 26.11.08.04. Visible Emissions](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_04.md)
- [COMAR 26.11.08.05 COMAR 26.11.08.05. Particulate Matter](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_05.md)
- [COMAR 26.11.08.06 COMAR 26.11.08.06. Prohibition of Unapproved Hazardous Waste Incinerators](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_06.md)
- [COMAR 26.11.08.07 COMAR 26.11.08.07. Requirements for Small Municipal Waste Combustors](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_07.md)
- [COMAR 26.11.08.08 COMAR 26.11.08.08. Requirements for an Existing Large MWC with a Capacity Greater Than 250 Tons Per Day](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_08.md)
- [COMAR 26.11.08.08-2 COMAR 26.11.08.08-2. Emission Standards and Requirements for HMIWIs Under 40 CFR 60 Subpart Ce as Revised October 6, 2009](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_08_2.md)
- [COMAR 26.11.08.09 COMAR 26.11.08.09. Incinerator Operator Training](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_09.md)
- [COMAR 26.11.08.10 COMAR 26.11.08.10. NOx Requirements for Large Municipal Waste Combustors](https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_10.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_MD_COMAR_26_11_08_04. Check the current official text before relying on it. Not legal advice.