When we had uniforms, each volunteer washed their own uniforms and I would have them laundered once they quit and I needed to give to someone else. We no longer have uniforms, the "uniform" for volunteers is now a lanyard that has "VOLUNTEER" on both sides. The volunteers seem to like them. They are cheaper so we no longer charge for them and are turned in if the volunteer leaves and are recycled. 

For our "loaner" smocks.... I take them home and wash them after each wearing. The majority of our volunteers buy their own and would be responsible for their upkeep.  My department is small and the upkeep is not a problem for me. ( I buy detergent and the hospital reimburses me..)

The Auxiliary purchases the volunteer uniforms and provides them to each volunteer for use.  The volunteer is responsible for keeping his/her uniform clean, neat and professional.

A new volunteer pays $20 for a uniformn the Vol organization pays the remaining $12 .  They keep the uniforms.