3 Exceptions to the PES
3-1 Price (39 USC 601(b)(1))
3-2 Weight (39 USC 601(b)(2))
3-3 Cargo (39 CFR 310.3(a))
3-4 Letters of the Carrier (39 CFR 310.3(b))
3-5 Private Hands Without Compensation (39 CFR 310.3(c))
3-6 Special Messenger (39 CFR 310.3(d))
3-7 Carriage Prior or Subsequent to Mailing (39 CFR 310.3(e))
