For taxable years after 1967, the term “trade or business” includes the performance of service:
         
            - 
               
                  • 
                     as a duly ordained, commissioned, or licensed minister of a church in the exercise
                        of their ministry,
                      
 
 
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                  • 
                     by a member of a religious order in the exercise of duties required by the order, 
 
 
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                  • 
                     by an individual in the exercise of their profession as a Christian Science practitioner. 
 
 
The above services are compulsorily covered, and the income is NESE.
         Exception — The above rules do not apply if an exception from taxation under section 1402(e)
            of the IRC has been granted (see RS 01802.063 ff.)