AB       Absent
AL       Legitimate Absence
CL       Compassionate Leave
DH       Deadhead
GU       Guarantee
HO       Holiday
JD       Jury Duty
LO       Layover
MC       Missed Call
ML       Military Leave
MO       Marked Off
OP       Other, Paid
PD       Personal Day
RD       Rest Day
RF       Refused Work
SD       Sick Day
SU       Suspension
VC       Vacation
WK       Work