As California regulators explore new rules to put self-driving semitrucks on the road, labor unions are rushing to the state Legislature to ask for a new law they say will protect their jobs — the start of a debate that could shape the future of the nation’s nearly $900 billion trucking industry…

The rulemaking process takes a long time, and is mostly crafted by officials in Democratic Gov. Gavin Newsom’s administration. Labor unions aren’t waiting around for that to happen. Instead, they’ve asked the state Legislature — where they have considerably more influence given their prolific campaign contributions — to intervene.

On Monday, more than 100 of members of the International Brotherhood of Teamsters joined Assemblymember Cecilia Aguiar-Curry, a Democrat from Winters, as she announced new legislation to require all self-driving semitrucks have a human driver present to oversee them.