1. General: Grant of authority by one party (the delegator) to another (the delgatee) for agreed purpose(s). Under the legal concept of vicarious liability, the delegator remains responsible for the delegatee's acts or omissions in carrying out the purpose of the delegation.
2. Agency: Transfer of an agent's right to act for the principal (such as from a contractor to a sub-contractor) that can take place only (1) with the permission of the principal, (2) where it is customary, or (3) where it is necessary for the performance of the entrusted duty.