|CHAPTER��4�-�EMPLOYEE�TRAVEL
    PART�L:��PER�DIEM�ALLOWANCES
        C4561��PER�DIEM�FOR�COURSES�OF�INSTRUCTIONS
            D.��Per�Diem�for�Training�Programs�and�Long-term�TDY�Assignments
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| | D.�Per Diem for Training Programs and Long-term TDY Assignments | 
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| | 1.� Training Programs and Long-Term TDY Assignments. | 
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| | Per Diem payments for training programs of more than 30 calendar days and TDY assignments of more than 180 calendar days at one location are: | 
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| | a.�55 percent of the applicable maximum amount prescribed in Appendix B or D, rounded to the next higher dollar; except that: | 
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| | b.�if Government quarters are available, per diem payable is determined using the lodgings-plus system in par.C4553; | 
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| | c.�if Government quarters are available and Government mess is used, per diem payable is determined using the lodging-plus system in par.C4553and the provisions in par.C4554-A; | 
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| | d.if meals and lodgings are furnished without cost to the employee, per diem payable is $2 within CONUS, $3.50 OCONUS when lodgings are on an installation (a post, camp, station, base, or depot owned or operated by the U.S.) or the applicable incidental expense allowance inAppendix Bif lodgings aren't on an installation. See par. C4554-A1b for a different incidental expense rate. | 
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| | 2.� Exceptions to the Prescribed Training Program and Long-Term TDY Per Diem Payments. | 
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| | When it can be factually determined the per diem payments prescribed in subpar. 1 aren't appropriate for a particular training or TDY assignment, the DOD component involved may request an exception to the 55 percent limitation payment in accordance with subpars. a and b. | 
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| | a.� Reduced Training and TDY Per Diem Payment. | 
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| | If it's determined by the travel-approving/directing official that the 55 percent payment isn't required because of known reductions in lodging and/or meal costs resulting from prearrangements or other reasons, the DOD component involved may request a fixed reduced per diem rate for a training or TDY assignment in accordance with par.C4550-A3. | 
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| | b. Training and TDY Per Diem Payment in Excess of the 55 Percent Limitation. | 
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| | If it's determined a per diem payment in excess of the 55 percent limitation is warranted, the DOD component involved may submit a request for per diem not to exceed the applicable maximum per diem rate prescribed in Appendix B or D for the locality involved.� The request must be supported by documentation of the circumstances (for example, nonavailability of acceptable lower-cost lodgings) justifying the need for a payment in excess of the 55-percent limitation.� The request may be forwarded by letter or message to the appropriate office designated in par.C4550-A4. | 
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| | c. Per Diem Adjustment when Employee on Long-Term Training or TDY Takes Leave | 
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| | When, because of long-term arrangements, it is necessary for an employee on a long-term training or TDY assignment to retain lodgings while on leave, the per diem rate paid while the employee is in a duty status may be adjusted, if requested by the employee, to include the cost of lodging (supported by a lease or lodging receipt) during the leave period.� For example, an employee, on a long-term TDY assignment at a location where the employee rents an apartment, is paid a per diem of $44 (55 percent of $80, rounded to next higher dollar).� For adjustment purposes the per diem is considered to consist of $16.50 (55 percent of $30, the M&IE rate for the TDY location) for meals and incidental expenses and $27.50 (55 percent of $50, the lodging rate for the TDY location) for lodging.� In the month of June the employee is scheduled to be away from the TDY location for 10 days in connection with annual leave.� The monthly lodging cost, including utilities, is $800.� During the month of June, the employee is entitled to per diem for only 20 days.� The daily lodging cost for each day is $40.00, determined by prorating the $800 lodging cost for the month of June over the 20 days during which the employee is entitled to per diem.� The adjusted per diem is $56.50, consisting of $16.50 for M&IE and $40 for lodging.� The total amount allowed for lodging costs in the adjusted per diem rate is limited to the amount the employee would have received if no leave were taken.�� In� the above� circumstances the limitation is� $825.00 (30 days x $27.50, which is the amount provided within the initial 55 percent per diem rate for lodging).� In instances when the adjusted per diem exceeds the maximum per diem rate prescribed in Appendix B or D for the location of the assignment, reimbursement on an actual expense basis for the lodging expense may be approved in accordance with Chapter 4, Part M, while the amount for meals and incidental expenses (55 percent of M&IE rate prescribed in Appendix B or D for the TDY location) is paid on a per diem basis. | 
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| | C4562� PER DIEM FOR CONSULTANTS, EXPERTS, AND PRIVATE INDIVIDUALS TRAVELING WITHIN CONUS OR OCONUS | 
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| | A.� General. | 
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| | Individuals employed intermittently in the Government service as consultants or experts and paid on a daily when actually employed (WAE) basis, and individuals serving without pay or at $1 a year aren't considered to have a PDS within the general meaning of that term.� Such individuals are authorized per diem as prescribed in subpars. A, B, or C while traveling on official business for the Government away from their homes or regular places of business and while at places of Government employment or service.� Maximum rates prescribed herein are applicable except as provided in subpar. B or unless a higher rate is specifically authorized in an appropriation or other statute. | 
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| | B.�Payment From a Non-Federal Source For Travel Expenses. | 
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| | To the extent the Government has received payment and except as provided in par. C4906, acceptable of payment for and reimbursement by the DOD component to, an employee (and/or the accompanying spouse of such employee when applicable) under par. C4900 aren't subjected to the maximum per diem rates prescribed in par.C4553orC4600for reimbursable travel expenses. | 
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| | C.�Consultants and Experts Employed on an Intermittent Basis. | 
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| | Individuals serving intermittently in the Government, with or without compensation, while in an official travel and duty assignment status as described in par.C4503, are authorized a per diem or AEA in accordance with par.C4553and par.C4600. | 
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| | D.�Private Individuals Serving Without Compensation. | 
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| | Except for preemployment interview travel, individuals who perform invitational travel under the provisions of Chapter 6, Part A, are authorized a per diem or AEA in accordance with par.C4553and par.C4600.� Per diem isn't payable incident to preemployment interview travel (see par.C6200).� Individuals who perform preemployment interview travel are entitled to reimbursement on an actual expense basis not to exceed the amount prescribed for such travel in par.C4602(40 Comp. Gen. 221 (1960)). | 
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| | E.�Reserve Officers Training Corps (ROTC) Cadet Serving Without Compensation. | 
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| | An ROTC cadet who performs recruiting duty under invitational travel orders in the area of the place he/she resides while attending the educational institution where the ROTC unit is located shall not be authorized the payment of per diem or AEA.� When the cadet performs recruiting duty outside such area, a per diem or AEA is authorized as provided in pars.C4553andC4600.� The cadet is considered as a person serving without pay.� For the purpose of this paragraph, the area of the place the cadet resides while attending the educational� institution where the ROTC unit is located means the metropolitan area surrounding such residence, which is ordinarily serviced by local common carriers of the city or town in which the residence is located, or in the comparable surrounding area if not located within a recognized metropolitan area. | 
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| | C4563� EFFECT OF ABSENCE ON PAYMENT OF PER DIEM | 
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| | A.� Periods of Absence Due to Illness or Injury. | 
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| | See Chapter 6, Part J for provisions governing per diem when an employee becomes incapacitated during travel status because of illness or injury. | 
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| | B.� Detained in Quarantine. | 
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| | When an employee on TDY is detained in quarantine, per diem allowances shall be paid for the period of such quarantine. | 
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| | C.� Leave and Nonworkdays | 
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| | 1.� General. | 
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| | Leave of absence (other than as provided in Chapter 6, Part J) for one half, or less, of the prescribed daily working hours shall be disregarded for per diem purposes.� Where the leave is more than one-half of the prescribed daily working hours, no per diem shall be allowed for that day.� For purposes of this subparagraph, the term "place of abode" means the place from which the employee commutes daily to the official station. | 
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| | 2.� Nonworkdays. | 
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| | Legal Federal Government holidays and weekends or other scheduled nonworkdays are considered nonworkdays.� Employees are considered to be in a per diem status on nonworkdays except when they return to their official station or place of abode, or except under conditions stated in subpars. a or b. | 
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| | a. Leave Before and After Nonworkdays. | 
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| | Per diem shall not be paid for nonworkdays when: | 
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| | 1.�employees are in a leave status at the end of the workday before the nonworkdays and at the beginning of the workday following the nonworkdays; and | 
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| | 2.�the period of leave on either of those days is more than one-half of the prescribed working hours for that day. | 
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| | b. Leave Between Nonworkdays. | 
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| | Per diem shall not be paid for more than two nonworkdays in cases where leave of absence is taken for all of the prescribed working hours between the nonworkdays. | 
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| | D.� Return to PDS on Nonworkdays. | 
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| | When an employee voluntarily returns home on nonworkdays from a place of TDY, reimbursement for the round-trip travel will be as provided in par.C4662.� In no event shall the reimbursement for the round-trip travel exceed the per diem and travel expenses payable had the employee remained at the TDY station. | 
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| | E.� Travel on Nonworkdays to Location Other than PDS. | 
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| | When an employee on TDY travels for personal reasons on nonworkdays from a place of TDY to a location other than the employee's home or PDS, the employee is entitled to per diem or AEA for the nonworkdays not to exceed the amount payable had the employee remained at the TDY location.� There is no entitlement to reimbursement for transportation costs when an employee travels for personal reasons from a TDY station on nonworkdays to a location other than the employee's home or PDS (B-171266, February 24, 1971). | 
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| | F.� Delay In Returning To PDS. | 
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| | When for personal reasons, including taking authorized leave, an employee doesn't return immediately to the PDS after completion of a period of TDY, per diem allowances shall be computed on the basis of the time that the employee reasonably could have left the TDY point and arrived at the PDS.� Normally, when short return trips are involved or travel is authorized on carriers with sleeping accommodations, the constructive time of departure shall be on the same day as that on which the TDY is completed.� When the return travel is by an authorized mode on which sleeping accommodations aren't available, it is proper to determine the employee's constructive date of departure would have been the morning of the day following completion of the TDY.� An employee shall not be expected to select a schedule that requires boarding or leaving a carrier between 2400 and 0600 hours.� Travel time in these cases shall be based upon regular published carrier schedules and shall be regarded as properly authorized upon administrative approval of the voucher. | 
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| | G.� Permanent Duty Travel. | 
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| | Per diem won't be paid for leave taken while traveling in response to permanent duty travel orders. | 
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| | H.� Absent From PDS For Personal Reasons. | 
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| | Except as provided in par.C4564-Dfor employees who are required� for� official� reasons� to� terminate� leave� of 5 days or more within 24 hours for the purpose of returning to duty at the permanent station, an employee who is absent from the PDS for personal reasons and who is required to return thereto for official reasons prior to the originally contemplated time of return isn't entitled to expenses incurred for such travel. | 
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| | C4564� EMPLOYEE'S LEAVE CANCELED OR INTERRUPTED | 
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| | A.� TDY Required at Place of Leave. | 
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| | An employee who is required to enter upon TDY at a place away from the PDS where traveled for personal reasons is entitled to per diem for the period of TDY and to traveling expenses on the return trip which exceed those which the employee normally would have incurred if the employee hadn't been required to perform the TDY en route (31 Comp. Gen. 509 (1952)). | 
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| | B.� TDY at Various Places, Including Return to PDS. | 
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| | An employee while in authorized leave status away from the PDS, who is required to interrupt his/her leave to perform official TDY at various places, including return to his/her PDS, and then resume leave status upon completion of the TDY assignment, is allowed per diem and transportation expenses from the place where leave was interrupted to the places of TDY (except no per diem while at official duty station) and return to the place where leave was interrupted (25 Comp. Gen. 347 (1945); 28 id. 237 (1948); 39 id. 611 (1960)). | 
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| | C.� TDY at Various Places Not Involving Return to PDS. | 
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| | In a situation not involving temporary return to a PDS, but otherwise similar to subpar. B, an employee upon completion of TDY is allowed per diem and transportation expenses to return to resume leave status at a point more distant from the place of TDY than the point where leave was interrupted, provided the round-trip distance and expense aren't greater than the distances and constructive travel expense between the employee's PDS and the place of TDY (27 Comp. Gen. 648� (1948)). | 
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| | D.� Authorized Leave of 5 Days or More Cancelled Within 24 Hours, and Leave Temporarily Interrupted Due to Recall to PDS. | 
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