OT for Exempt & Non Exempt Employee - USA

hello Gurus,

Business Scenario :

1. Country : USA

2. Employee Classification : Salaried (Exempt or Non Exempt) or Hourly

3. Only Salaried - Non Exempt Employee is entitled to OT.

Whether the employee is Exempt or Non Exemp is captured in one of the Std ON infotypes & reflected in IT 0001.

My question is :

1. How will will i inform the system that OT is only for Non Exempt Employee

2. Do i need to capture the Exempt / Non Exempt classification somewhere in the Employee Group or Subgroup??

3. Since this is a Staturtoy requirement, the Std SAP system takes care of the OT

I read sumwhr that Operation OUTWPEXMPT can be used. But how??

pls provide some insight

rgds,