; and (5) enter into cooperative agreements, contracts, grants (or other arrangements which may be permitted by the Secretary) with nonprofit organizations possessing demonstrable expertise and experience serving children who are blind or visually impaired or the professionals trained to work with such students, institutions of higher education, State and local educational agencies, public and private specialized schools serving students with visual disabilities, and consortia of such entities, for the purpose of carrying out activities authorized in this section that are not otherwise directly conducted, in whole or in part, by the Anne Sullivan Macy Center on Visual Disability and Educational Excellence. 214. Authorization of appropriations and carryover (a) Authorization of appropriations To carry out the provisions of this subtitle, there are authorized to be appropriated such sums as may be necessary, except that appropriations made during any fiscal year shall be maintained at the funding level appropriated in such fiscal year or increased over such funding level for a period of not less than 4 subsequent fiscal years. (b) Carryover Funds appropriated pursuant to subsection (a) that have not been expended during the fiscal year for which they were appropriated shall remain available in the subsequent fiscal year, except that no more than 15 percent of a given fiscal year’s appropriation may be so carried over. 215. Relationship to other programs and activities (a) Coordination of research The Secretary shall ensure that research activities authorized and carried out pursuant to this subtitle are conducted or funded in coordination as appropriate with the National Center for Special Education Research and other divisions within the Department of Education responsible for research activities. (b) Relationship to services offered by the American printing house for the blind Nothing in this subtitle shall be construed to limit or otherwise condition the use of any funds appropriated pursuant to the Act to