(Reuters) - U.S. bank regulators said four major banks had shortcomings in their "living wills" - or plans that outline how they could be safely wound down if they went bankrupt or came under pressure.

The four lenders - Citigroup ( C/PN ), Bank of America ( BAC ), Goldman Sachs ( GS ) and JPMorgan Chase ( JPM ) - all had problems related to the plan to unwind their derivatives portfolios, although some of the specific issues varied, the regulators said.

Here is a selection of the comments:

Shortcoming identified

Bank

Citi In response to a test by regulators, the

grou bank inaccurately calculated the capital

p and liquidity it would need for an orderly

wind down of its derivatives portfolio. Its

systems lack ability to incorporate updated

stress scenarios and assumptions.

Bank Bank could not use dates outside of the

of normal business-as-usual production process

Amer for spot derivatives and trading positions

ica in estimating resource needs.

Gold Plan does not account for the complexity

man and the granularity necessary to accurately

Sach measure exit timing, costs and the

s difficulty of unwinding its derivatives

positions.

JPMo Bank was unable to update certain economic

rgan conditions while calculating its capital

Chas and liquidity needs tied to unwinding its

e derivatives portfolio, in response to a

test by regulators.