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Public Hearing: Solvent Cleaning and Drying Regulations

Date & Time:
Wednesday, December 2, 2020
6:00 pm


, Delaware

The DNREC Division of Air Quality will conduct a virtual public hearing (Docket #2019-R-A-0029) on proposed amendments to the regulations governing Solvent Cleaning and Drying (7 DE Admin. Code 1124, Section 33.0). Public comment period open through Dec. 17, 2020.

Connection Information

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Event Number: 173 613 8246
Password: Solvent
Dial-in Number: 1-408-418-9388

Closed-captioning available by request if made at least 7 days before the event.

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The Division of Air Quality is proposing to update control requirements in 7 DE Admin. Code 1124 based upon a 2012 Ozone Transport Commission model rule. The proposed amendments are mainly related to cold cleaning machines and include:

  1. Eliminating the exemptions for cold cleaning machines containing less than one liter of solvent and five weight percent volatile organic compound (VOC),
  2. Allowing cold cleaning machines to be heated to below boiling,
  3. Reducing the solvent VOC concentration from 100 percent to 25 grams per liter for most applications, and
  4. Allowing higher VOC concentrations to be used in conjunction with a VOC capture and control device.

These amendments will reduce emissions of VOC from solvent cleaning operations, thus reducing the formation of ground-level ozone. Delaware also will submit the amendments to EPA as a State Implementation Plan revision.

The proposed amendments may be inspected online starting November 1, 2020 at, or in-person, by appointment only, by contacting Renae Held by phone at 302-739-9402 or by email at

Those wishing to offer verbal comments during DNREC public hearings must pre-register no later than noon of the date of the virtual hearing at or by telephone at 302-739-9295.

The Department will accept public comment through the close of business on Thursday, Dec. 17, 2020. Comments will be accepted in written form via email to, using the online form at, or by U.S. mail to the address below.

Docket #2019-R-A-0029

Submit A Comment

Public Hearing Officer

Theresa Newman
DNREC Office of the Secretary
89 Kings Highway
Dover, DE 19901

Related Documents and Links

State Public Meeting Calendar Notice

DNREC Public Notice



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