12 U.S. Code § 2124 - Stock of banks for cooperatives
The Capital stock of each bank for cooperatives shall be in such amount as its board determines is required for the purpose of providing adequate capital to permit the bank to meet the credit needs of borrowers from the bank and such amounts may be increased or decreased from time to time in accordance with such needs.
The capital stock of each bank shall be divided into shares of par value of $100 each and may be of such classes as the board may determine. Such stock may be issued in fractional shares.
(c) Eligible holders of voting stock
Voting stock may be issued or transferred to and held only by
(i) cooperative associations eligible to borrow from the banks 
(ii) other categories of persons and entities described in sections 2128 and 2129 of this title eligible to borrow from the bank, as determined by the bank’s board of directors; and
(iii) other banks for cooperatives, and shall not be otherwise transferred, pledged, or hypothecated except as consented to by the issuing bank under regulations of the Farm Credit Administration.
(d) Entitlement to vote
Each holder of one or more shares of voting stock which is eligible to borrow from a bank for cooperatives shall be entitled only to one vote and only in the affairs of the bank in the district in which its principal office is located unless otherwise authorized under regulations issued by the Farm Credit Administration, except that if such holder has not been a borrower from the bank in which it holds such stock within a period of two years next preceding the date fixed by the Farm Credit Administration prior to the commencement of voting, it shall not be entitled to vote.
(e) Nonvoting investment stock
Nonvoting investment stock may be issued in such series and in such amounts as may be determined by the board and may be exchanged for voting stock or sold or transferred to any person subject to the approval of the issuing bank.
(f) Participation certificates
Participation certificates may be issued to parties to whom voting stock may not be issued.
 So in original. There probably should be a semicolon after “banks”.
Source(Pub. L. 92–181, title III, § 3.3, Dec. 10, 1971, 85 Stat. 603; Pub. L. 96–592, title III, § 302,Dec. 24, 1980, 94 Stat. 3443; Pub. L. 99–205, title II, § 205(e)(3), (4),Dec. 23, 1985, 99 Stat. 1705; Pub. L. 100–233, title VIII, §§ 802(o), 805 (k),Jan. 6, 1988, 101 Stat. 1712, 1715; Pub. L. 110–234, title V, §§ 5402, 5403(a),May 22, 2008, 122 Stat. 1154; Pub. L. 110–246, § 4(a), title V, §§ 5402, 5403(a),June 18, 2008, 122 Stat. 1664, 1915.)
Pub. L. 110–234and Pub. L. 110–246made identical amendments to this section. The amendments by Pub. L. 110–234were repealed by section 4(a) ofPub. L. 110–246.
2008—Subsec. (b). Pub. L. 110–246, § 5402, which directed substitution of “par” for “per”, could not be executed because “per” did not appear.
Subsec. (c)(ii), (iii). Pub. L. 110–246, § 5403(a), added cl. (ii) and redesignated former cl. (ii) as (iii).
1988—Subsec. (a). Pub. L. 100–233, § 802(o)(1), struck out “, with the approval of Farm Credit Administration,” after “board determines”.
Subsec. (b). Pub. L. 100–233, § 802(o)(2), struck out “with the approval of the Farm Credit Administration” after “board may determine”.
Subsec. (d). Pub. L. 100–233, § 805(k), substituted “by” for “by by” after “regulations issued”.
Subsec. (e). Pub. L. 100–233, § 802(o)(3), struck out “and approved by the Farm Credit Administration” after “Board”.
1985—Subsec. (d). Pub. L. 99–205, § 205(e)(3), inserted “under regulations issued by” after “authorized”.
Subsec. (e). Pub. L. 99–205, § 205(e)(4), struck out “, except for stock held by the Governor,” before “may be exchanged”.
1980—Subsec. (f). Pub. L. 96–592added subsec. (f).
Effective Date of 2008 Amendment
Amendment of this section and repeal of Pub. L. 110–234by Pub. L. 110–246effective May 22, 2008, the date of enactment of Pub. L. 110–234, see section 4 ofPub. L. 110–246, set out as an Effective Date note under section 8701 of Title 7, Agriculture.
Effective Date of 1985 Amendment