made available under this heading, $1,950,000,000 shall be transferred to Federal Emergency Management Agency—Federal Assistance for the Shelter and Services Program to support sheltering and related activities provided by non-Federal entities, including construction and facility improvements: Provided further , That of the amounts made available under this heading, $603,520,000 shall be for establishing and operating temporary processing facilities, including auxiliary facilities to increase processing capacity at ports of entry along the southwest border while supporting trade facilitation and travel