19 C.F.R. § 141.32
Form for power of attorney.
Customs Form 5291 may be used for giving power of attorney to transact Customs business. If a Customs power of attorney is not on a Customs Form 5291, it shall be either a general power of attorney with unlimited authority or a limited power of attorney as explicit in its terms and executed in the same manner as a Customs Form 5291. The following is an example of an acceptable general power of attorney with unlimited authority:
____________________________________________
(Name of principal)
________________________________________ ,
(State legal designation, such as corporation, individual, etc.) residing at ______________________________ and doing business under the laws of the State of ____________, hereby appoints