wrote:
....

is fine, it fits the dimensions, but our plumber found out that is not
an list of Massachusetts approved list of residential plumbing
fixtures. The sink is sold in MA, it has a distributor in Chicago, yet
we cannot install it.

Is there any way around this? My plumber said he will not install it
if it's not on the list because of the plumbing inspector. ...

http://license.reg.state.ma.us/pubLic/pb_pre_form.asp

Online search engine for products.

Amazing!!! Makes one glad to not be in the Commonwealth of MA.

Searched and it implies the online list is up-to-date and if it ain't
there, it ain't approved. Didn't see anything about how to request
approval for a nonlisted device...

And, of course, the plumber assuming he is licensed can't afford to
violate local Code/regulation so can't blame him...

Still hard to understand the disconnect between the list and stocking
distributor -- unless they're doing business out of state at a high
enough level to justify the inventory costs seems like a losing
proposition for them...

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