About Smog Legal Finder

Smog Legal Finder answers one question: which aftermarket parts have a California Executive Order (EO) for my car? CARB publishes each EO as a separate PDF, one product line from one maker, with the vehicles listed in a table at the back (Exhibit A). Parts makers show only their own parts, and the PDFs can't be searched by vehicle. We read the tables and put every brand's listing for a vehicle on one page.

Independent reference built from public CARB documents. This site is not affiliated with or endorsed by the California Air Resources Board, the Bureau of Automotive Repair or any parts maker. A row here means the part number and vehicle appear in the CARB EO shown; the final determination is made by CARB and the Smog Check station or Referee.

How we find EOs

CARB does not publish a downloadable list of all EO numbers. Aftermarket part EOs are stored at addresses of the form …/aftermarket/devices/eo/d-company-number.pdf, so we check those addresses company code by company code, slowly (about one request per second). So far we have found 757 EO numbers in 62 company codes (113 codes checked). The search box links any of them to its PDF.

How we read the vehicle tables

For each EO we have downloaded (690 so far), we read the table from the PDF's drawn grid lines, so each cell keeps its own row even when text wraps. A row is shown only if all of these pass: the model year is a valid year or range, the make is a known vehicle make, the model is a specific model (not "all trucks"), and the part number looks like a part number. Rows that fail any check (763 now) are left out, and the EO page says how many. Older EOs that are scanned images, and EOs whose vehicle list is not a ruled table, are shown with basic details and the PDF only.

We check our reading against the PDFs with a second, independent text extraction: a random sample of rows is compared with the original page. Latest result: 30 of 30 rows matched (2026-11-11).

What we do not cover

• Catalytic converters: CARB matches them by engine test group in its own converter lookup, so we show those EOs without vehicle tables.
• Emissions "delete" or race-only parts. They cannot get an EO and are not listed.
• Whether a part fits, how it performs or what it does to your warranty. An EO says nothing about these.

Who runs it

Smog Legal Finder is run independently as part of ttakbom.com, a small group of data lookup tools. Ads help pay for it and do not affect the data. Data retrieved November 11, 2026. Corrections are welcome: wogud9784@naver.com.