Va. Code Ann. § 15.2-1502
D. Subject to the limitations and requirements of the preceding subsections, an officer of a locality may delegate, to a person reporting to him, his powers and duties unless it is some power or duty the exercise of which by another person is expressly forbidden by law or requires the exercise of judgment for the public welfare. However, such delegation shall not act to relieve the officer making such delegation of his legal obligations for the exercise of powers and performance of duties of his office.
Persons employed by virtue of this subsection shall be designated either deputy or assistant and shall take such oath and post such bond as may be required by ordinance.
1978, c. 264, §§ 15.1-19.4, 15.1-19.5; 1997, c. 587.