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Chapter 173-460 WAC

This rulemaking will amend Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.  This rule includes air quality permitting requirements for businesses that emit toxic air pollutants.

The rulemaking will use the most recent, best available health effects information to:

  • Update the list of toxic air pollutants.
  • Recalculate:
    • Acceptable source impact levels (ASIL)
    • Small quantity emission rates (SQER)
    • De minimis emission values
  • Update the rule to support the changes described above.

We are also starting a related, but different, process we call exploratory rulemaking to assess possible changes to the rest of Chapter 173-460 WAC.

Rulemaking timeline

Timeline

Announcement phase (CR-101)

Filing date:
Jul. 18, 2018


Announcement documents

Rule development phase

July 18, 2018 – Spring 2019



Public input & involvement

Ecology's meetings with stakeholders
 
Date Documents Location
Monday
Aug. 20, 2018
10 a.m. – noon
Agenda
Methods for Updating the List of Toxic Air Pollutants
2018 Draft Acceptable Source Impact Levels (ASIL) Summary List
2018 ASIL Options (spreadsheet)
Presentation
Ecology, Lacey (map to location)
webinar
Wednesday
Oct. 10, 2018
1:30 p.m. – 3:30 p.m.
Topics:
• Draft table
• Toxicity equivalency factors
• Early life adjustment factors
• Mercury
Ecology, Lacey (map to location)
webinar *
Friday
Nov. 16, 2018
1 p.m. – 3 p.m.
Topics:
• Draft table
• Criteria pollutants
Ecology, Lacey (map to location)
webinar *
Tuesday
Dec. 11, 2018
1 p.m. – 3 p.m.
Topics:
• Draft table
• Ammonium sulfate
Ecology, Lacey (map to location)
webinar *

* Register to receive your access code and password.
   To hear the webinar better, use your phone (instead of the computer) to call 1-240-454-0887.

Additional languages

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Accessibility

To request ADA accommodation for disabilities, or printed materials in a format for the visually impaired, call Hanna Waterstrat at 360-407-7668 or email hanna.waterstrat@ecy.wa.gov. Persons with impaired hearing may call Washington Relay Service at 711. Persons with speech disability may call TTY at 877-833-6341.