This requirement is a Request for Proposal (RFP) against Supply Arrangement # W6399-**-****. All Supply Arrangement holders will be e-mailed the RFP directly. If vendors outside of the Supply Arrangement are interested in submitting a proposal, they will have to qualify for the Supply Arrangement before they are given an opportunity to bid on this requirement. Please contact the Supply Arrangement Contracting Officer at PSPC to obtain the steps required to be considered for Supply Arrangement # W6399-**-****.