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C-1 UNDERSTANDING INTERNAL REVENUE SERVICE RULES
C-1.1 Compliance With Current Regulations
C-1.3 Trade or Business Activity
C-1.4 Nonprofit Related Activity
C-1.5 Size and Extent of Activity
C-2 APPLYING IRS RULES TO POSTAL RULES
C-2.1 Nonprofit or Tax-Exempt Entity
C-2.2 Churches and Other Religious Organizations