In addition to the authorization of appropriations provided under subsection (a) of this section, there is authorized to be appropriated to the Secretary for the purposes of carrying out
section 3704a of this title not to exceed $500,000 for the fiscal year ending
September 30, 1988, $1,000,000 for the fiscal year ending
September 30, 1989, and $1,500,000 for the fiscal year ending
September 30, 1990.