Members must show up and work their volunteer shifts once a month, but if they cannot make their usual shift they have the option to swap shifts with another member. If a member misses their shift, they must complete two make-up shifts before their next shift. The strictness of this policy has been criticized as unfair to single parents, members with multiple outside jobs, and students, since an excess of required make-up shifts requires significant working hours that may be unmanageable without external support.