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This is about GM PROVING GROUNDS — MILFORD, MI.

Records here are compiled from federal filings, so a value can be accurate to the filing and still be out of date. Telling us what it should say is the fastest way to fix it. A person decides every correction; nothing changes on its own.

What the record says now

Facility name
GM PROVING GROUNDS
Street address
3300 GENERAL MOTORS RDBLDG 31
City, state or ZIP
MILFORD, MI, 48380
Open or closed
unverified
Industry or NAICS code
336111
The correction
The corrected value itself, as it should appear. If the plant has closed, say so and give the year if you know it.
A link to the company’s own page, a filing, or a news item gets a correction applied faster than anything else. If you work there, saying so is enough.
Used only to ask about this correction if we need to. It is never published and never added to a mailing list.