((a)) ** .—** In this section—

((1)) the term “employee” means a qualified law enforcement officer employed by the Bureau of Prisons; and

((2)) the terms “firearm” and “qualified law enforcement officer” have the meanings given those terms under section 926B.

((b)) ** .—** The Director of the Bureau of Prisons shall ensure that each chief executive officer of a Federal penal or correctional institution—

((1))

((A)) provides a secure storage area located outside of the secure perimeter of the institution for employees to store firearms; or

((B)) allows employees to store firearms in a vehicle lockbox approved by the Director of the Bureau of Prisons; and

((2)) notwithstanding any other provision of law, allows employees to carry concealed firearms on the premises outside of the secure perimeter of the institution.