To be an ex post facto law the the requirements you are complaining
about would have to require a change to what is already built.
Complaining? No, just stating a fact. Yes, the building was already
built.
Requiring the addition of smoke, CO, and explosive gas detectors to an
existing building as a condition of a renewal of the use and occupancy
only regulates the future condition of the building and then only as a
condition of it being used in a certain way such as rental property.
....and commercial property, and not on change of residents.
*IMMEDIATELY*. Same with sprinkler systems.
The code in question would be an ex post facto law if it required that
the existing electrical plant be brought up to current code, that the
pitch of the stairs be changed, or that the width of doorways that met
the code at the time of construction be changed to match a new code
requirement in the absence of a change in use. The difference is
admittedly subtle but there is a difference.
You got me there. How is a CO detector different than any other code
item? Just to make the point, they must be AC powered and *DO*
require renovation to the electrical system.
I wanna hear this twisting....