a0d929ca_WSRP_v2_0_Specification__Statement_text
[#] CS107 [Section] 6.4 [Statement text] 
The Consumer MUST NOT use an invalidated registrationHandle, where the invalidation occurs either by passing the handle to deregister or by receiving a InvalidRegistration fault message from the Producer on an invocation supplying the handle.
WSRP v2.0 Specification
Statement text