41 CFR § 302-17.45
What if I incur income tax liability to the Commonwealth of the Northern Mariana Islands or any other territory or possession of the United States?
June 9, 2020
If you are relocated to, from, or within the Commonwealth of the Northern Mariana Islands or any territory or possession of the United States that is covered by the definition in §302-17.1, your agency will have to determine the tax rules of that locality and then include those taxes in your RITA calculation, as applicable.