DENVER (AP) — A debate over expanding requirements for snow tires on Colorado highways faces a test Thursday in the state Senate.

The bill would require snow tires or chains on noncommercial vehicles at all times during winter and spring months, an attempt reduce accidents and mountain traffic.

The measure has already passed the House.

RELATED: Bill To Require Snow Tires Along I-70 Moves Forward

The proposal means drivers would, regardless of weather conditions, need to have their tires equipped for snow conditions from Nov. 1 to May 15 or face fines.

That’s a change from current law, which requires noncommercial drivers to have snow tires or chains only under certain weather conditions when transportation officials say the rule is in effect. Commercial vehicles like trailers are already under strict chain rules during those dates.

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LINK: House Bill 1173