US WARN layoff notices › Employers › P › Proterra Operating

Proterra Operating — WARN Act layoff notices

Official state WARN filings by Proterra Operating since 1988, normalized from state labor department sources. Latest notice: 2023-07-27.

2notices

135workers affected

1state

Notice date	State	Location	Employees	Effective date	Type
2023-07-27	California	San Mateo County	48	2023-07-28	Layoff Permanent
2023-01-20	California	Los Angeles County	87	2023-03-31	Layoff Permanent

Source: state WARN Act disclosures, normalized in the free US WARN notices dataset (CSV/JSON, no login, no delay, notices 1988+). WARN notices are advance notifications of plant closings and mass layoffs; actual layoff counts and dates can change after filing.

Only care about certain employers or states? WARN Watch, $49/year runs your list against every refresh and gives you a private alert page + RSS (free for 30 days first, no card). The data itself — every notice back to 1988 — is free.