HB2401 – Managing refrigerant gases used in appliances or other infrastructure.
Prime Sponsor – Representative Duerr (D; 1st District; Bothell) (Co-Sponsors Doglio, Berry, Fitzgibbon, Ramel, Pollet – Ds)
Current status – Had a hearing in the House Committee on Environment & Energy January 22nd. Replaced by a substitute and passed out of committee January 29th. Referred to Appropriations and scheduled for a hearing there at 9:00 AM on Saturday February 3rd.
Next step would be – Action by the committee.
Legislative tracking page for the bill.

Summary –
There’s a staff summary of the original bill and one of the substitute on the tracking page.