|CHAPTER�4�-�TEMPORARY�DUTY�TRAVEL�TDY
    PART�B:��PER�DIEM�ALLOWANCE
        U4102��CIRCUMSTANCES�IN�WHICH�PER�DIEM�NOT�AUTHORIZED
            L.��Field�Duty.
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| | L.� Field Duty. | 
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| | A member on field duty isn't entitled to per diem except when the: | 
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| | 1. senior commander in charge of the exercise� (or designated representative)� for each operating location issues a statement to the member indicating that either Government quarters at no charge, and/or Government meals at no charge for enlisted members,� weren't available during stated periods of the field duty; | 
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| | 2. member is participating in the advance planning or critique phase of the operation; or | 
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| | 3. Secretary concerned authorized payment of a per diem to members who are performing field duty while in a travel status under par.U4105-D. | 
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| | The period during which this prohibition is in effect begins at 0001 on the day after the day on which field duty begins and ends at 2400 on the day before the day on which it ends.� This subparagraph doesn't prohibit reimbursement under par.�U4510� for occasional meals or quarters necessarily procured. | 
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| | M.�TDYAboard Foreign (Nongovernment) Vessel. | 
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| | A member isn't entitled to a per diem allowance for any period ofTDYaboard a nongovernment foreign vessel when both quarters and all meals are furnished without charge.� The period during which this prohibition is in effect begins at 0001 on the day after the day of arrival on board and ends at 2400 on the day before the day of departure therefrom.� If a member is required to retain unoccupied quarters at the location whereTDYwas performed just before performing duty aboard a nongovernment foreign vessel, reimbursement for the cost of such quarters shall be made under par.U4510. | 
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| | N.� Member in Missing Status. | 
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| | A member isn't entitled to per diem after 2400 of the day the member is officially carried as or determined to be absent in a missing status under the� Missing� Person� Act (44 Comp. Gen. 657 (1965)). | 
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| | U4105� PER DIEM PAYABLE UNDER SPECIFIC CASES | 
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| | A.�TDYin Connection With Fitting Out or Conversion of a Vessel. | 
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| | When a member is assigned toTDYin connection with fitting out or conversion of a vessel, per diem is authorized during each fitting out or conversion period, including the day of ship commissioning or service craft placement in service,� and day of ship decommissioning or service craft placement out of service.� Authorization for per diem ends on the date the member's assignment is changed fromTDYin connection with fitting out or conversion of a vessel to permanent duty aboard that vessel, even if that change is effected prior to the date of ship commissioning or service craft placement in service.� In determining entitlement to per diem, par. U4102-O applies after a ship or service craft under construction is delivered to the Government. | 
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| | B.� Travel byU.S.or Foreign Government Vessel for 24 Hours or More | 
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| | 1.� Member Not Charged for Meals. | 
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| | A member isn't entitled to a per diem allowance when traveling aboard aU.S.or foreign government vessel when meals are furnished without charge, except on days of embarkation and debarkation if otherwise entitled thereto under subpar. C. | 
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| | 2.� Member Charged for� Meals. | 
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| | Members traveling aboard aU.S.or foreign Government vessel, other than an oceangoing car ferry, of 24 hours or more as passengers (except those aboard forTDYor training) who are charged for meals shall be paid a per diem allowance equal to the cost of the meals furnished, except on the day of embarkation and debarkation. | 
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| | C.� Travel,TDYAboard Commercial Vessel orU.S.Government Vessel Totally Leased for Commercial Operation. | 
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| | Except for the day of arrival (day of embarkation) and the day of departure (day of debarkation), a member (including Coast Guard members performing inspection aboardU.S.merchant vessels) traveling onTDYaboard aU.S.Government vessel leased to and operated by a� commercial company or a commercial vessel, other than an oceangoing car ferry, is entitled to a per diem allowance of $6 per day.� When the $6 rate isn't sufficient to meet the member's subsistence expenses, a per diem rate equal to the anticipated expenses may be authorized/approved.� Such rate may not exceed $25 and the order-issuing official should state in the orders the circumstances warranting the increased rate. | 
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| | D.� Field Duty. | 
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| | The Secretary concerned may prescribe a per diem rate in a lesser amount than prescribed in Appendix B for a member of a unit deployedOCONUSaway from the unit'sPDS.� This rate is paid to the members concerned in lieu of the rate shown in Appendix B regardless of theirOCONUSlocation and may be paid during periods which would otherwise be considered field duty, taking into account the reduced expenses, if any, a member would have while performing field duty during the period covered by the authorization.� The rate prescribed should be paid for the period of time specified and is such that the total per diem paid during the entire period that the member is subject to the reduced rate is about equal to that which the member would receive for the same period underAppendix Bcalculated according to the computation procedures in this Part and excluding the time during which the member performs field duty.� The Secretary concerned may delegate this authority to prescribe such a rate to a chief of an appropriate bureau or staff agency of the headquarters of the department concerned or to a commander of an appropriate naval systems command headquarters, but there may be no redelegations. | 
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| | E.� Member Dies While in aTDYStatus. | 
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| | When a member dies while in aTDYstatus, entitlement to per diem accrues through the date of death.� Entitlement to reimbursement for transportation or aMALTwill accrue from the old station (or lastTDYstation) to the place of death not to exceed the official distance of the ordered travel. | 
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| | F.� Ordered toTDYWhile on Leave | 
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| | 1.�TDYat Leave Point. | 
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| | A member on leave away from thePDSwho receives orders to performTDYat the leave point is entitled to per diem for theTDYperformed in compliance with the orders. | 
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| | 2.�TDYat Other Than Leave Point | 
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| | a.� Authorized to Resume Leave Upon Completion ofTDY. | 
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| | A member on leave away from thePDSwho receives orders to performTDYat other than the leave point is entitled to per diem and transportation expenses for travel from the leave address or place of receipt of orders, whichever is shorter, to theTDYstation, and from theTDYstation to the leave address.� Per diem is payable for the period at theTDYstation plus transportation in kind orMALT. | 
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| | b.� Directed to Return toPDSUpon Completion ofTDY. | 
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| | A member away from thePDSwho receives orders to performTDYat other than the leave point is entitled to per diem and transportation expenses for travel from the leave address or place of receipt of orders, whichever is shorter, to theTDYstation and from theTDYstation to thePDS.� Per diem is payable for the period at theTDYstation. | 
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| | c.� Directed to Proceed to NewPDSUpon Completion ofTDY. | 
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| | A member is entitled to the travel and transportation allowances prescribed forPCSfor travel performed from the oldPDSto the leave address or to the place orders were received, whichever applies, not to exceed in either case the official distance from the oldPDSto the newPDS.� The member is also entitled to the travel and transportation allowances prescribed forPCSfor travel performed from the leave address or place of receipt of orders, as applicable, to theTDYstation and from theTDYstation to the newPDS.� Per diem also is payable for theTDYdirected at theTDYstation. | 
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| | G.� Orders Canceled While Member En Route to TDY Station. | 
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| | If�TDYorders are canceled while a member is en route to theTDYstation, round trip travel and transportation allowances are authorized from thePDSto the point where cancellation notification was received (includes leave point) and return to thePDS, not to exceed the round trip distance from thePDSto theTDYstation.� Per diem isn't authorized for any day in which member was in a leave status (51 Comp. Gen. 548 (1972)). | 
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| | H.�TDYWithin the Limits ofPDS. | 
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| | Travel and transportation allowances are authorized for a member performingTDY(other than at the residence or normal duty location of the member) within the limits of aPDSwhen authorized by competent authority. Allowances under this sub-paragraph are authorized when such duty is performed under emergency circumstances that threaten injury to human life or damage to property of the� Federal Government, provided overnight accommodations are used by reason of such duty.� For transportation entitlements see Chapter 3. | 
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| | U4115� INTERNATIONAL DATELINE | 
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| | In computing per diem allowances where the international dateline is involved, the computation is based on actual elapsed time. | 
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| | U4125� PER DIEM UNDER THE LODGINGS PLUS SYSTEM | 
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| | A.� General. | 
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| | Per diem computed under this Part is based on the lodgings-plus system.� The total amount may not exceed the applicable locality rate.� The member is required to state on the voucher the lodging cost for each day in a travel status.� Receipts are required for lodging, except that a statement instead of a receipt is accepted for the fee or service charge incurred for the use of Government quarters if authorized in regulations of the Secretary concerned.� If receipts have been lost or destroyed or are impractical to obtain, a statement explaining the circumstances are furnished with the voucher, including the name and address of the lodging facility, the dates the lodging was obtained, whether others shared the room, and the cost incurred. | 
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| | 1.� Lodging Expense. | 
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| | The amount allowed for lodging expense is the amount incurred or the maximum amount prescribed in Appendix B, or D for lodging for the locality concerned, whichever is less.� Lodging cost incurred for the use of other than Government quarters for any day on which Government quarters were available is reimbursed as prescribed in Part E.� | 
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| | a.� Commercial Lodging. | 
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| | Except as provided for double occupancy in subpar. c, when a member uses commercial lodging facilities (for example, hotels, motels, and boarding houses), the allowable lodging expense is based on the single room rate for the lodging used. | 
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| | b.� Government Quarters. | 
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| | A fee or service charge paid for Government quarters is an allowable lodging expense. | 
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| | c.� Double Occupancy. | 
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| | If a lodging receipt shows a charge for double occupancy, that fact is shown on the voucher with the name and organization or employing agency or office of the person sharing the room if the person is a uniformed member or Government employee on official travel.� In this case, the member is allowed one-half of the double occupancy charge.� If the person sharing the room isn't another uniformed member or Government employee on official travel, identification of the person sharing the room isn't required and the member may be allowed the single room rate.� The member is required to provide the single room rate.� | 
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| | d.� Lodging With Friends or Relatives. | 
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| | If a member stays with friends or relatives while onTDY, no cost for lodging is allowed, whether or not any payment of lodging is made to the friend or relative. | 
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| | e.� Lodging in Other Than Commercial Facilities. | 
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| | When no commercial lodging facilities are present (for example, in remote areas) or when there is a shortage of rooms because of an influx of attendees at special events (for example, world fairs or International Sporting Events), costs of lodging obtained in other than commercial facilities may be allowed.� Such facilities may include college dormitories or similar facilities as well as rooms made available to the public by area residents in their homes.� In these cases, the traveler must provide an explanation of the circumstances which is acceptable to the order-issuing official or designated representative. | 
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| | f.� Lodging Not Available atTDYStation. | 
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| | The locality per diem rate or the actual expense ceiling for the location where lodging is finally obtained is used for computation when a member performsTDYat a place where neither Government nor commercial quarters are available.NOTE:� This subparagraph applies only when the per diem rate where lodging is procured is higher than the per diem rate for theTDYlocation.� The higher rate must be authorized/approved by the order-issuing official. | 
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| | g.� Reimbursement for Costs of Renting or Using an Apartment, House, Mobile Home, Travel Trailer, or Recreational Vehicle While onTDY. | 
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| | A member onTDYwho rents a furnished or unfurnished apartment, house, mobile home, travel trailer, or recreational vehicle (for example, a camper, camping vehicle), or who uses a privately owned mobile home, travel trailer, or recreational vehicle for quarters, may be authorized per diem computed under this paragraph.� Subpar. d applies for lodging with friends or relatives.� Allowable expenses which may be considered as a part of the actual lodging costs are listed below: | 
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| | (1) rent of the apartment, house, mobile home, travel trailer or camping vehicle; | 
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