Submittal of sufficient evidence to substantiate any proposed alternate material, design, or construction method. Request for Proposal.All proposer's must fill out, sign and submit the "Certification Regarding Debarment,. The subcontractor's guide to working with Clark Construction, including their history, how to prequalify, payment tips, and more. Glenville State University was founded in 1872 to provide instruction and practice for common school teachers in the science of education.