Pursuant to terms and conditions established by the board, members may transfer funds from eligible retirement plans into the Teachers’ Retirement Fund to purchase service credit or redeposit previously refunded contributions pursuant to this chapter, Chapter 14.2 (commencing with Section 22820), Chapter 14.5 (commencing with Section 22850), and Chapter 19 (commencing with Section 23200), to the extent that the transfer is allowable under, and is completed in a manner prescribed by, applicable federal and state law and any related regulations.