Correct.
I'd like to see anyone vested with less than, say, 10k total be able to just cash it out. Not sure if it's even allowed under the law, but you'd think it'd be win-win. The employee gets their $$$ to do whatever with, and the IAM is no longer responsible for maintaining that account for decades to come.
You can. Here's a cut and paste from the 2012 Summary Plan Book of the IAMNPP.
Automatic or Voluntary Lump Sum
Cash-Out of Small Pensions
Under certain circumstances, the Trustees will
automatically make a single cash payment to participants
who have accrued small pensions as of their pension
effective dates.
For distributions effective January 1, 1998 or later, if
the actuarial present value of your pension is $5,000
or less, your payment will be in a single lump sum.
If your benefit is paid in this form, no further benefits are
payable to you or any survivors.
For pensions effective July 1, 2007 or later, if the
actuarial present value of the monthly pension exceeds
$5,000 but is not more than $10,000 as of the effective
date, the recipient may voluntarily elect to receive the
benefit in a single lump sum. If the voluntary cash out
is elected, no further benefits are payable to anyone.
This provision does not apply to pensioners who are
already receiving benefits.