Export keyword on a procedure - can it be limited to which modules can use it?

I look at the manual and it looks pretty cut and dry. If you define the export on the procedure then the procedure is available to any module in the program.

I have a service program made up of many modules. I have a utility module that my service modules are sharing. Now programs that I have the service program bound to, this utility module is available to its modules outside of the service program modules as well.

Is it possible to have the services utility module only available/limited to other modules in the service program but not available to programs that have the service program bound to them?

Thanks
Andy Hautamaki