Any law about work

I don't know about a law, but I always assumed that a doctor's word was taken pretty seriously. But, even if a doctor's note was provided and your husband did get the desired shift, what would prevent them from terminating him? Is he protected by a union?

yes he's in a union. he went to talk to the union today and they said they'd go talk to hr tomorrow. just didn't understand who the heck they think they are to decide over a dr. that's even for fmla they decide if its approved or not even when the dr. fills out all the necessary paperwork. now i thought that was something federal or something.

What is the reason for the restriction?? You might have more success going at it from the angle of a disability under the American with disabilities act (ADA) which requires employers to make reasonable accommodation for employees with specific medical needs in order to perform your job.

You do not have to have a dis ability in the way most people think in order to qualify under the ADA..

check this site for more info
http://www.usdoj.gov/crt/ada/

I would check with the Dept. of Labor.

Olive,
My husband and I both work in Hr..Even if protected by a union, a dr slip may not be enough. My husband is currently dealing with a similar situation with an employee..If your husband's work won't accept the dr slip, he may file what is called "request for reasonable accomodation". He can file this through the hr dept at his job. This is a formal procedure that requires additional dr visits. It takes a little bit to accomplish, but the request is generally granted.
See what happens with the union, tho..If your husband has senority they may be able to accomplish this themselves.