6 USC 455 - Miscellaneous authorities

(a) Seal 
The Department shall have a seal, whose design is subject to the approval of the President.
(b) Participation of members of the Armed Forces 
With respect to the Department, the Secretary shall have the same authorities that the Secretary of Transportation has with respect to the Department of Transportation under section 324 of title 49.
(c) Redelegation of functions 
Unless otherwise provided in the delegation or by law, any function delegated under this chapter may be redelegated to any subordinate.