Are they "asked"? or "required"?
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This is a juvenile COURT criminal site. This is not a criminal issue. Also, you said they were asked to do this. Are they required to do this? Good Luck to you. Re post in the appropriate forum.
If you believe this is a violation of wage and hour regulations of the state of Washington as well as violations of child labor laws I believe the first and most appropriate step would be to have your nephew document the hours the services were being performed on a calendar. Maybe even snap a few pictures if it can be done. If you called ME with this issue I would probably indicate that I would want to know a heck of alot more - similar to the questions another attorney has asked in order to figure out if this was truly volunteer (like what if he said "no"). There are several attorneys in your area you could consult with face to face on this, but if they are not interested a call to Washington Department of Labor Workplace Standards Division and a formal and documented complaint would probably trigger an investigation and if appropriate a fine and/or documentation that might ultimately cause some interest in the matter by attorneys in your area.
I believe that you need to identify what state this is in, and if it is in Washington, I understand that in order for a school to consider this "volunteer" hours, they must show that the parent or guardian consented. Children under 18 are not permitted to contract. There are specific provisions for internships, and the school must apply for and obtain permission from the Dept. of Labor & Industries to qualify the hours as unpaid internship volunteer hours. As for volunteering and actually performing work that improves a premises, this sounds like construction and would further require apprenticeship approval for each trade. It is probably a bit more complicated than the school realizes.
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