As used in this section, the term “housing owner” means a private nonprofit corporation or other private nonprofit legal entity, a limited dividend corporation or other limited dividend legal entity, or a cooperative housing corporation, which is a mortgagor under section 221(d)(3) of the National Housing Act [
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(d)(3)] and which, after August 10, 1965, has been approved for mortgage insurance thereunder and has been approved for receiving the benefits of this section: Provided, That, except as provided in subsection (j) of this section, no payments under this section may be made with respect to any property financed with a mortgage receiving the benefits of the interest rate provided for in the proviso in section 221(d)(5) of that Act [
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(d)(5)]. Such term also includes a private nonprofit corporation or other private nonprofit legal entity, a limited dividend corporation or other limited dividend legal entity, or a cooperative housing corporation, which is the owner of a rental or cooperative housing project financed under a State or local program providing assistance through loans, loan insurance, or tax abatement and which may involve either new or existing construction and which is approved for receiving the benefits of this section. Subject to the limitations provided in subsection (j) of this section, the term “housing owner” also has the meaning prescribed in such subsection. Nothing in this section shall be construed as preventing payments to a housing owner with respect to projects in which all or part of the dwelling units do not contain kitchen facilities; but of the total amount of contracts to make annual payments approved in appropriation Acts pursuant to subsection (a) of this section after December 31, 1970, not more than 10 per centum in the aggregate shall be made with respect to such projects.