§ 1381. Withdrawal liability established; criteria and definitions

• (a) If an employer withdraws from a multiemployer plan in a complete withdrawal or a partial withdrawal, then the employer is liable to the plan in the amount determined under this part to be the withdrawal liability.
• (b) For purposes of subsection (a)—
  • (1) The withdrawal liability of an employer to a plan is the amount determined under section 1391 of this title to be the allocable amount of unfunded vested benefits, adjusted—
    • (A) first, by any de minimis reduction applicable under section 1389 of this title ,
    • (B) next, in the case of a partial withdrawal, in accordance with section 1386 of this title ,
    • (C) then, to the extent necessary to reflect the limitation on annual payments under section 1399(c)(1)(B) of this title , and
    • (D) finally, in accordance with section 1405 of this title .
  • (2) The term “complete withdrawal” means a complete withdrawal described in section 1383 of this title .
  • (3) The term “partial withdrawal” means a partial withdrawal described in section 1385 of this title .