(

a) Except with respect to taxes allocated to the authority pursuant to subdivision (

b) of

Section which are used by the authority to make payments with respect to the installation of street lights and sidewalks within the project area, not less than percent of those taxes shall be used by the authority for the purpose of increasing and improving, within the jurisdiction of the authority, the supply of housing for persons of low income as defined in

Section of the Health and Safety Code and for persons and families of moderate income as defined in

Section of the Health and Safety Code. (b)

(1) With respect to taxes allocated to the authority pursuant to subdivision (

b) of

Section from that portion of the project area described in paragraph (2) of subdivision (

a) of

Section 8180 (the R Street Area), not less than percent of those taxes from the R Street Area shall be used by the authority for the purpose of increasing and improving, within the jurisdiction of the authority within the R Street Area, the supply of housing for persons of low income, as defined in

Section of the Health and Safety Code, and for persons and families of moderate income, as defined in

Section of the Health and Safety Code.

(2) Over the duration of the portion of the project area described in paragraph (2) of subdivision (

a) of

Section 8180 (the R Street Area), the authority shall expend the funds set aside pursuant to this subdivision in proportion to the need for housing for very low income households, persons of low income, and persons and families of moderate income, as determined for the City of Sacramento pursuant to

Section of the Government Code. In no event, however, shall less than percent of these funds be expended to assist housing for very low income households nor less than percent be expended to assist housing for persons of low income. The term “very low income households” shall have the meaning set forth in

Section of the Health and Safety Code.

(3) Newly constructed rental housing financed in whole or in part with the funds set aside pursuant to this subdivision shall remain affordable to, and occupied by, very low income households, persons of low income, and persons and families of moderate income for not less than years.