Richard.....usually on site, they will have a tent. In the tent are people that are there to sort out the volunteers.....you must sign a confidentiality agreement, as well as an agreement to hold them harmless if you get hurt. They will accept anyone who wants to help that has some sort of a construction background. If you can sew, than you can work on the curtains and such.,.....if you know construction, then you can help.....you can even help with cleaning, or installing furniture....they will NOT turn you away......