RPLS offers interpretation and assistance in understanding library and other laws, which pertain to the legality of library service. When a particular point or problem that affects the entire System needs further explanation, a System staff member will contact the System legal counsel for a written opinion, which is then distributed to appropriate libraries. There are some limitations and restrictions on the use, which can be made of this service, due primarily to funds available.

Questions between a library and its local government and pro forma contracts, etc., remain the responsibility of the local library. Although the System provides some service in obtaining legal opinions that affect a broad range of libraries, this service cannot replace the need of local libraries for direct access to legal advice and services to serve their individual problems and concerns. Every library is ultimately responsible for cases involving tax levy, litigation, etc. and should assume the financial responsibilities for any legal problems related only to their communities.