DEPARTMENT OF HEALTH

[Filed April 20, 2026, 4:14 p.m., effective May 21, 2026]

Effective Date of Rule: Thirty-one days after filing.

Purpose: Reference for sources of radionuclide emissions, adopting national standards in WAC 246-247-035. The department of health adopted an update to the federal rule publication date to conform to United States Environmental Protection Agency requirements.

Citation of Rules Affected by this Order: Amending WAC 246-247-035.

Statutory Authority for Adoption: RCW 70A.388.040 and 70A.388.050(5).

Adopted under notice filed as WSR 26-06-084 on March 3, 2026.

Number of Sections Adopted in Order to Comply with Federal Statute: New 0, Amended 0, Repealed 0; Federal Rules or Standards: New 0, Amended 1, Repealed 0; or Recently Enacted State Statutes: New 0, Amended 0, Repealed 0.

Number of Sections Adopted at the Request of a Nongovernmental Entity: New 0, Amended 0, Repealed 0.

Number of Sections Adopted on the Agency's own Initiative: New 0, Amended 0, Repealed 0.

Number of Sections Adopted in Order to Clarify, Streamline, or Reform Agency Procedures: New 0, Amended 0, Repealed 0.

Number of Sections Adopted using Negotiated Rule Making: New 0, Amended 0, Repealed 0; Pilot Rule Making: New 0, Amended 0, Repealed 0; or Other Alternative Rule Making: New 0, Amended 1, Repealed 0.

Date Adopted: April 20, 2026.

Kristin Peterson, JD

for Dennis E. Worsham

AMENDATORY SECTION(Amending WSR 25-11-002, filed 5/8/25, effective 6/8/25)

WAC 246-247-035National standards adopted by reference for sources of radionuclide emissions.

(1) In addition to other requirements of this chapter, the following federal standards, as in effect on July 1, ((2025))2026, are adopted by reference except as provided in subsection (2) of this section.

(a) For federal facilities:

(i) 40 C.F.R. Part 61, Subpart A - General Provisions.

(ii) 40 C.F.R. Part 61, Subpart H - National Emission Standards for Emissions of Radionuclides Other Than Radon From Department of Energy Facilities.

(iii) 40 C.F.R. Part 61, Subpart I - National Emission Standards for Radionuclide Emissions From Federal Facilities Other Than Nuclear Regulatory Commission Licensees and Not Covered by Subpart H.

(iv) 40 C.F.R. Part 61, Subpart Q - National Emission Standards for Radon Emissions From Department of Energy Facilities.

(b) For nonfederal facilities:

(i) 40 C.F.R. Part 61, Subpart A - General Provisions.

(ii) 40 C.F.R. Part 61, Subpart B - National Emission Standards for Radon Emissions From Underground Uranium Mines.

(iii) 40 C.F.R. Part 61, Subpart K - National Emission Standards for Radionuclide Emissions From Elemental Phosphorus Plants.

(iv) 40 C.F.R. Part 61, Subpart R - National Emissions Standards for Radon from Phosphogypsum Stacks.

(v) 40 C.F.R. Part 61, Subpart T - National Emission Standards for Radon Emissions From the Disposal of Uranium Mill Tailings.

(vi) 40 C.F.R. Part 61, Subpart W - National Emission Standards for Radon Emissions From Operating Mill Tailings.

(2) References to "Administrator" or "EPA" in 40 C.F.R. Part 61 include the department of health except in any section of 40 C.F.R. Part 61 for which a federal rule or delegation indicates that the authority will not be delegated to the state.