Employer Charging Employee a Partial Cost for Required Uniforms

My husband's employer requires him to wear uniforms to work daily. A uniform company supplies the uniforms, picks them up for cleaning and returns a new set each week. My husband's employer deducts a uniform fee from his paycheck weekly as a partial cost of supplying the uniforms. Is this legal?

From what I had read of the Massachusetts employment laws (and I am certainly not an attorney), I got the impression that the employer could not charge an employee if they were requiring the employee to wear the uniform. Could you please clarify this for me. Thanks!