37 Pa. Code § 481.21
Where county case volume allows, indigent defense should be a mixed system: primarily dedicated public defender offices, augmented by additional court appointed/conflict counsel to handle overflow and conflict of interest cases. The compensation for lawyers working for public defender offices should be appropriate for and comparable to other publicly funded lawyers. Court appointed/conflict counsel should be paid a reasonable fee, in a timely manner, that reflects the cost of overhead and other office expenses, as well as payment for work. Investigators, social workers, experts and other staff and service providers necessary to indigent defense for all indigent defense providers should also be compensated in a manner consistent with this principle.
37 Pa. Code § 481.21