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        (a) 
         IRR Program funds as defined in 23 U.S.C. 204(j) are only available upon request of a tribal government and approved by the BIA Regional Office. These funds support development and implementation of tribal transportation planning and associated strategies for identifying transportation needs, including:
     
    
        
        (1) 
         Attending transportation planning meetings;
     
    
        
        (2) 
         Pursuing other sources of funds; and
     
    
        
        (3) 
         Developing the tribal priority list or any of the transportation functions/activities as defined in the FHWA IRR Program Transportation Planning Procedures and Guidelines (TPPG) or listed in  § 170.402.
     
    
        
        (b) 
         A tribe may ask the BIA regional office to enter into a self-determination contract or self-governance agreement for transportation planning activities and functions under ISDEAA or it may request a travel authorization to attend transportation planning functions and related activities using these funds. (See appendix A of subpart B for use of IRR Program Funds.)