39 C.F.R. § 965.7 Default.
Title 39 - Postal Service
A party who fails to file the submittal required by §965.5 may be held in default and the presiding officer may issue an initial decision that mail be delivered to the other party.
Title 39: Postal Service
PART 965—RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO MAIL DISPUTES
§ 965.7 Default.