As used in this Subpart:

Board means the Federal Retirement Thrift Investment Board, established pursuant to 5 U.S.C. 8472;

C Fund means the Common Stock Index Investment Fund established under 5 U.S.C. 8438(b)(1)(C);

Executive Director means the Executive Director of the Board described in 5 U.S.C. 8474;

F Fund means the Fixed Income Investment Fund established under 5 U.S.C. 8438(b)(1)(B);

G Fund means the Government Securities Investment Fund established under 5 U.S.C. 8438(b)(1)(A);

Individual account means the account established for a participant in the Thrift Savings Plan under 5 U.S.C. 8439(a);

Investment fund means either the G Fund, the F Fund, or the C Fund, or any other Thrift Savings Plan investment fund created after June 24, 1997;

Open season means the period during which participants may choose to begin making contributions to the Thrift Savings Plan, to change or discontinue the amount they are currently contributing to the Thrift Savings Plan (without losing the right to recommence contributions the next open season), or to allocate prospective contributions to the Thrift Savings Plan among the investment funds;

Participant means any person with an individual account in the Thrift Savings Plan, or who would have an account in the Thrift Savings Plan but for an employing agency error;

Record keeper means the entity that is engaged by the Board to perform record keeping services for the Thrift Savings Plan. As of June 24, 1997, the record keeper is the National Finance Center, Office of the Chief Financial Officer, United States Department of Agriculture, located in New Orleans, Louisiana.

Source of contributions means either agency automatic (1%) contributions under 5 U.S.C. 8432(c)(1) or 8432(c)(3), agency matching contributions under 5 U.S.C. 8432(c)(2), or employee contributions under 5 U.S.C. 8351, or 8440(a) through 8440d;

Thrift Savings Plan means the Federal Retirement Thrift Savings Plan established by the Federal Employees’ Retirement System Act of 1986 (FERSA), Public Law 99-335, 100 Stat. 514, which has been codified, as amended, largely at 5 U.S.C. 8401-8479.