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                                                                    EXHIBIT 99.3



                               CONSENT OF DIRECTOR

I hereby consent to being named in the Registration Statement on Form S-1 of
TravelCenters of America LLC (the "Company") as a person who will become a
director of the Company upon consummation of the spin off of the Company from
Hospitality Properties Trust.


                                   /s/ ARTHUR G. KOUMANTZELIS
                                   --------------------------------
                                   Arthur G. Koumantzelis
                                   December 1, 2006