DIVISION 26. AIR RESOURCES 39000-44474›PART 1. GENERAL PROVISIONS AND DEFINITIONS 39000-39060›CHAPTER 2. Definitions 39010-39060
§ 39047.2
California Health and Safety Code · 2018-11 edition · updated 2026-10-04 · California
“PM2.5” means particulate matter 2.5 microns and smaller in size.
(Added by Stats. 1999, Ch. 477, Sec. 1. Effective January 1, 2000.)
Get a plain-English answer with a citation back to this text.
Ask AI about this code