Laundry exhaust fan ALWAYS On

[srechkin (Simon Rechkin)]

2 speed bath fan

I’m in Oregon. I’ve recently done 2 RAND NEW houses in the same subdivision 3 bed 2 bath house. In the master the venting is normal in the Hall bath the fan is a 2 speed fan selectable by a switch on the wall. I’ve never seen this before is this a new requirement??

Here, in NY, there must be a switch/control to override the fan, you may have something similar in your locale:

M1507.3.2 System Controls
The whole-house mechanical ventilation system shall be provided with controls that enable manual override.