40 CFR §45.135

1. (a)Trainees must be citizens of the United States, its territories, or possessions, or lawfully admitted to the United States for permanent residence.
2. (b)Recipients shall not require the performance of personal services by individuals receiving training as a condition for assistance.
3. (c)Trainees are entitled to the normal student holidays observed by an academic institution, or the holiday and vacation schedule applicable to all trainees at a nonacademic institution.
4. (d)Training awards may include a provision to pay stipends to trainees. Stipends must be paid under section 111 of the Clean Water Act consistent with prevailing practices under comparable federally supported programs.
5. (e)Training awards under section 111 of the Clean Water Act are subject to the following conditions:
   1. (1)Recipients must obtain the following agreement in writing from persons awarded scholarships for undergraduate study of the operation and maintenance of treatment works:
   2. (2)Recipients must take such action as may be reasonably required to enforce the condition in paragraph (e)(1) of this section. Recipients shall credit or pay EPA for any repayments.