§ 53512. FIFO and LIFO withdrawals
(a)
 FIFO.— 
Except as provided in subsection (b), an amount withdrawn from an account under this chapter shall be treated as withdrawn on a first-in-first-out basis.
(b)
 LIFO.— 
An amount withdrawn from an account under this chapter shall be treated as withdrawn on a last-in-first-out basis if it is—