Final answer:
Under the Servicemembers Civil Relief Act (SCRA), there are significant limitations on debt collection activities against servicemembers on active duty, which can affect the use of offset and cross-servicing authorities.
Step-by-step explanation:
The question if an agency may continue collection activity on a delinquent borrower who has been called to active military service is an issue of law related to the protections provided to servicemembers. According to the Servicemembers Civil Relief Act (SCRA), certain protections are in place for military members that could affect the collection of debts. The SCRA limits legal actions against servicemembers on active duty for obligations such as outstanding credit card debt and mortgage payments, and may limit or delay debt collection procedures. It's important to consult the SCRA and other related regulations to ensure compliance, as these may override certain offset and cross-servicing authorities.