OI
Order Of Investigation
调查令
OM
Order Of Magistrate
地方法官命令
OO
Order Of Occupation
占有令
OP
Order Of Protection
保护令
OR
Own Recognizance
个人具结释放
OS
Order Of Supervision
监管令
OSHA
Occupational Safety and Health Act
职业安全与健康法
OSHA
Occupational Safety and Health Administration
职业安全与健康管理局
OT
Order Of Treatment
治疗令
OU
Order Of Undertaking
承诺令
OW
Order To Show Cause
说明理由令
OX
Order Of Examination
审查令
PA
Power of Attorney
授权委托书
PA2
Power of Attorney
委托书/授权书