Related Clues:

• GPS output (h)
• 1 and 66, briefly
• Interstate abbr.
• GPS suggestion
• G.P.S. request
• Map nos.
• Bus assignment: abbr.
• GPS info
• They're on the map, briefly
• UPS driver's assignment
• Some highways with nos.
• Tpk.'s kin
• USPS info
• Postal beats, briefly
• USPS assignment