It's common that some business process steps are performed by humans (such as in approval or exception handling workflows).

一些业务流程的步骤常常是人工执行的(例如，在审批或者异常处理工作流中)。

youdao

Merely temporarily reversing the decision of the Librarian of Congress and keeping the underlying technology still illegal, and the personal exception subject to periodic new approval would put us back in this boat every three years.

CNN: Unlocking your cell phone is no crime

Merely having the personal exception for the blind, dependent upon a triennial approval from the Librarian of Congress, does not solve the problem.

FORBES: Discussing a Post-SOPA Strategy - Cellphone Unlocking