DEPARTMENT OF NATURAL RESOURCES AND ENVIRONMENTAL CONTROL

Division of Air and Waste Management

Air Quality Management Section

Statutory Authority: 7 Delaware Code, Section 6010 (7 Del.C. 6010)

FINAL

* Please note: Although the Secretary’s Order on this regulation reflects an effective date of October 11, 1999, the appropriate effective date for this regulation is December 13th due to a delay in submission for publication in the Register.

Re: Delaware’s Regulations Governing the Control of Air Pollution Relating to PM 2.5 and the National Low Emissions Vehicle Program

Date of Issuance: September 1, 1999

Effective Date of the Amendments: October 11, 1999

I. Background Findings

II. Findings and Conclusions

III. Order

IV. Reasons

Nicholas A. Di Pasquale, Secretary

Adopted Regulation Changes to The Delaware Regulations Governing the Control of Air Pollution.

Regulation No. 3 – Ambient Air Quailty Standards

Section 11 - PM10 and PM2.5 Particulates

11.1 The Primary and Secondary Ambient Air Quality Standards for Particulate Matter, measured as PM10 are:

11.2 The Primary and Secondary Ambient Air Quality Standards for Particulate Matter, measured as PM2.5 are:

3 DE Reg. 778 (12/01/99) (Final)