(a) The excluded employee may accumulate the unused portion of vacation credit, provided that on January 1st of a calendar year, the excluded employee shall not have more than 80 vacation days.

(b) The appointing power may permit an excluded employee to carry over more vacation credits than the prescribed maximum when the excluded employee is prevented from taking vacation because the excluded employee is: (1) required to work as a result of fire, flood or other emergency, (2) assigned work of priority or critical nature over an extended period, (3) absent on full salary for compensable injury, or (4) prevented by the agency's regulations from taking vacation until December and is then unable to take vacation because of sick leave usage. The carry-over of vacation credits in successive years may only be approved by the appointing power in extenuating circumstances.

(c) When verification of prior state service requires revisions in vacation credits the excluded employee's current accumulation shall be adjusted. Additional credit exceeding the maximum carry-over shall be used within one year following the qualifying monthly pay period in which credited.

(d) An excluded employee separated from service without fault, shall be paid for all accumulated vacation credit. Accumulation of vacation credit shall continue through the last working day for which the excluded employee is entitled to pay or through the date to which lump-sum payment is projected as required by Government Code section 19839. If the excluded employee has sufficient paid working days to qualify the monthly pay period, vacation with pay shall be given for that monthly pay period.

(e) An excluded employee separated from service through fault shall accumulate vacation credit only through the date of separation. If the excluded employee has sufficient paid working days to qualify the monthly pay period, vacation pay shall be given for that monthly pay period.