(a) Extent of insurance coverage—(1) Accounts of the United States. Each official custodian of funds of the United States lawfully depositing such funds in an insured depository institution shall be separately insured in the amount of:

(i) Up to the SMDIA in the aggregate for all time and savings deposits; and

(ii) Up to the SMDIA in the aggregate for all demand deposits.

(2) Accounts of a state, county, municipality or political subdivision. (i) Each official custodian of funds of any state of the United States, or any county, municipality, or political subdivision thereof, lawfully depositing such funds in an insured depository institution in the state comprising the public unit or wherein the public unit is located (including any insured depository institution having a branch in said state) shall be separately insured in the amount of:

(A) Up to the SMDIA in the aggregate for all time and savings deposits; and

(B) Up to the SMDIA in the aggregate for all demand deposits.

(ii) In addition, each such official custodian depositing such funds in an insured depository institution outside of the state comprising the public unit or wherein the public unit is located, shall be insured in the amount of up to the SMDIA in the aggregate for all deposits, regardless of whether they are time, savings or demand deposits.

(3) Accounts of the District of Columbia. (i) Each official custodian of funds of the District of Columbia lawfully depositing such funds in an insured depository institution in the District of Columbia (including an insured depository institution having a branch in the District of Columbia) shall be separately insured in the amount of:

(A) Up to the SMDIA in the aggregate for all time and savings deposits; and

(B) Up to the SMDIA in the aggregate for all demand deposits.

(ii) In addition, each such official custodian depositing such funds in an insured depository institution outside of the District of Columbia shall be insured in the amount of up to the SMDIA in the aggregate for all deposits, regardless of whether they are time, savings or demand deposits.

(4) Accounts of the Commonwealth of Puerto Rico and other government possessions and territories. (i) Each official custodian of funds of the Commonwealth of Puerto Rico, the Virgin Islands, American Samoa, the Trust Territory of the Pacific Islands, Guam, or The Commonwealth of the Northern Mariana Islands, or of any county, municipality, or political subdivision thereof lawfully depositing such funds in an insured depository institution in Puerto Rico, the Virgin Islands, American Samoa, the Trust Territory of the Pacific Islands, Guam, or The Commonwealth of the Northern Mariana Islands, respectively, shall be separately insured in the amount of:

(A) Up to the SMDIA in the aggregate for all time and savings deposits; and

(B) Up to the SMDIA in the aggregate for all demand deposits.

(ii) In addition, each such official custodian depositing such funds in an insured depository institution outside of the commonwealth, possession or territory comprising the public unit or wherein the public unit is located, shall be insured in the amount of up to the SMDIA in the aggregate for all deposits, regardless of whether they are time, savings or demand deposits.

(5) Accounts of an Indian tribe. Each official custodian of funds of an Indian tribe (as defined in 25 U.S.C. 1452(c)), including an agency thereof having official custody of tribal funds, lawfully depositing the same in an insured depository institution shall be separately insured in the amount of:

(i) Up to the SMDIA in the aggregate for all time and savings deposits; and

(ii) Up to the SMDIA in the aggregate for all demand deposits.

(b) Rules relating to the “official custodian”—(1) Qualifications for an “official custodian”. In order to qualify as an “official custodian” for the purposes of paragraph (a) of this section, such custodian must have plenary authority, including control, over funds owned by the public unit which the custodian is appointed or elected to serve. Control of public funds includes possession, as well as the authority to establish accounts for such funds in insured depository institutions and to make deposits, withdrawals, and disbursements of such funds.

(2) Official custodian of the funds of more than one public unit. For the purposes of paragraph (a) of this section, if the same person is an official custodian of the funds of more than one public unit, he or she shall be separately insured with respect to the funds held by him or her for each such public unit, but shall not be separately insured by virtue of holding different offices in such public unit or, except as provided in paragraph (c) of this section, holding such funds for different purposes.

(3) Split of authority or control over public unit funds. If the exercise of authority or control over the funds of a public unit requires action by, or the consent of, two or more officers, employees, or agents of such public unit, then they will be treated as one “official custodian” for the purposes of this section.

(c) Public bond issues. Where an officer, agent or employee of a public unit has custody of certain funds which by law or under a bond indenture are required to be set aside to discharge a debt owed to the holders of notes or bonds issued by the public unit, any deposit of such funds in an insured depository institution shall be deemed to be a deposit by a trustee of trust funds of which the noteholders or bondholders are pro rata beneficiaries, and the beneficial interest of each noteholder or bondholder in the deposit shall be separately insured up to the SMDIA.

(d) Definition of “political subdivision”. The term “political subdivision” includes drainage, irrigation, navigation, improvement, levee, sanitary, school or power districts, and bridge or port authorities and other special districts created by state statute or compacts between the states. It also includes any subdivision of a public unit mentioned in paragraphs (a)(2), (a)(3) and (a)(4) of this section or any principal department of such public unit:

(1) The creation of which subdivision or department has been expressly authorized by the law of such public unit;

(2) To which some functions of government have been delegated by such law; and

(3) Which is empowered to exercise exclusive control over funds for its exclusive use.