; and (2) by inserting after subsection (h) the following: (i) A space support vehicle may not operate under an experimental permit under this section unless such vehicle has a valid letter of deviation authority in accordance with section 91.319(h) of title 14, Code of Federal Regulations or any similar successor regulation. The Secretary shall issue such letter of deviation authority not later than 60 days after the provision of an experimental permit under this section, to the extent consistent with maintaining the public health and safety and the safety of property. .