Could civilian shipyards build treaty light carriers?

Might navies order light carriers from civilian shipyards?

Yes. Interwar yards commonly built both naval and commercial ships, so many cruiser-capable yards could take the work.

Today's sharp division between naval and civilian shipyards does not fit the interwar industry. Firms such as Vickers could build a battleship, a liner, and another ship type in adjacent berths because their business was general heavy ship construction. A cruiser-sized carrier could therefore draw on a broad yard base rather than a few dedicated naval facilities.