Thrift Savings Plan Technical Amendments Act of 1990

[AI summary unavailable — showing source text] Requires the Executive Director of the Federal Retirement Thrift Investment Board to issue regulations which require employing agencies to pay the Thrift Savings Fund amounts representing lost earnings because of such agencies' errors in connection with the Thrift Savings Plan. Requires that such regulations provide for: (1) procedures for determining whether an employing agency error has occurred; (2) which agencies are responsible for correcting the error; and (3) the manner in which the error shall be corrected. Allows the Executive Director to provide in such regulations for exceptions from this Act's requirements to the extent that correction of an error is not administratively feasible. Provides that determinations of administrative feasibility shall include consideration of the error's correction costs and the benefits to the Funds' participants and beneficiaries derived from such correction. Specifies guidelines for such regulations to provide for employing agency payments to the Fund. Provides that amounts required to be paid by an employing agency shall be paid from the agency's salary appropriation or fund. Allows a civil action to recover Thrift Savings Plan benefits if…