29 CFR §525.15

1. (a)Where the employer is an organization or institution carrying out a recognized program of rehabilitation for workers with disabilities and holds a special certificate issued pursuant to this part, certification under regulations governing the employment of industrial homeworkers (29 CFR part 530) is not required.
2. (b)For all other types of employers, special rules apply to the employment of homeworkers in the following industries: Jewelry manufacturing, knitted outerwear, gloves and mittens, buttons and buckles, handkerchief manufacturing, embroideries, and women's apparel. (See 29 CFR part 530.)