letter of authorization

基本解释

Letter of authorization by member to settlement personnel.
会员对清算人员的授权书。
Its authorized representatives are fully authorized to sign this contract on its behalf (the original of letter of authorization shall be submitted to another party for record);
其授权代表拥有充分授权代表其签署本合同（授权书正本交另一方存查）；
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Before the release of B/L by Party B, Party A should inform his supplier forwarding the Authorization Letter and the Guarantee to Party B.
甲方在要求乙方电放提单前，应通知其供货商将提单电放委托书及保函交给乙方。

It is also worth noting that a number of these authorizations — including the largest authorization reported in the CBO letter — are simply new authorizations of spending that already exists.
WHITEHOUSE: A New Round of Old Questions on Health Insurance Reform
Your letter of invitation requested that I comment on the workforce provisions in the recently enacted National Defense Authorization Act (NDAA) for FY 2008 and the Accountability in Government Contracting Act of 2007 (S. 680), which passed the Senate on November 7, 2007.
WHITEHOUSE: Testimony of Paul A. Denett