**The 1991 Regulations provided for two sets of rules at ports of entry: one for immigration services and one for non-immigration services. These provisions reflected the division of responsibilities that existed at the time the 1991 Regulations were adopted, and is no longer accurate. | **The 1991 Regulations provided for two sets of rules at ports of entry: one for immigration services and one for non-immigration services. These provisions reflected the division of responsibilities that existed at the time the 1991 Regulations were adopted, and is no longer accurate. |