If a railroad police officer directly employed by or contracted by a rail carrier and certified or commissioned as a police officer under the laws of a State transfers primary employment or residence from the certifying or commissioning State to another State or jurisdiction, the railroad police officer, not later than 1 year after the date of transfer, shall apply to be certified or commissioned as a police office
1
So in original. Probably should be “officer”.
under the laws of the State of new primary employment or residence.