[Code of Federal Regulations]

[Title 40, Volume 9]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR63.62]



[Page 92]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 63_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR 

SOURCE CATEGORIES--Table of Contents

 

 Subpart C_List of Hazardous Air Pollutants, Petitions Process, Lesser 

               Quantity Designations, Source Category List

 

Sec.  63.62  Redefinition of glycol ethers listed as hazardous air 

pollutants.



    The following definition of the glycol ethers category of hazardous 

air pollutants applies instead of the definition set forth in 42 U.S.C. 

7412(b)(1), footnote 2: Glycol ethers include mono- and di-ethers of 

ethylene glycol, diethylene glycol, and triethylene glycol R-

(OCH2CH2)n-OR'.



Where:



n = 1, 2, or 3;

R = alkyl C7 or less; or

R = phenyl or alkyl substituted phenyl;

R'= H or alkyl C7 or less; or

OR' consisting of carboxylic acid ester, sulfate, phosphate, nitrate, or 

sulfonate.



[65 FR 47348, Aug. 2, 2000]