From the notice

This requirement is for two air compressor relocations for US Naval Research Laboratory (NRL). The full description and response requirements are included in the Request for Quotes (RFQ) N0017326Q1905 along with attachments. Your quick response is appreciated to facilitate an award prior to current fiscal year end. A site visit is required before submitting any proposal or quote. The mandatory site visit is scheduled for Wednesday, October 7, at 9:30 am EDT at NRL. All visitors must notify NRL Contracts at least 2 days prior to the scheduled visit. If you are unable to attend on this date, another date may be requested, although the requested date/time may not be available. No change to the response date and time specified in Block 8 of the Standard Form (SF) 1449 will be granted based on an inability to visit NRL on the planned site visit day. Your quick response is appreciated to facilitate an award prior to current fiscal year end. Amendment N0017326Q19050001 provides photos of the air compressors data plate information. Amendment N0017326Q19050002 includes an additional site visit and extends RFQ response date. Amendment N0017326Q19050003 removes the small business set aside, includes a site visit and extends RFQ response date. Amendment N0017326Q19050004 provides additional photos, drawings, Government responses to questions received, and extends RFQ response date. Amendment N0017326Q19050005 provides Government response to an additional question received.