NIGP 558: Mass Transportation - Rail Vehicles and Systems
Class
Code facts
NIGP codes come from the NIGP Code (NIGP: The Institute for Public Procurement, maintained by Periscope Holdings), and state and local contract opportunities from the governments' procurement sites.
State & local contract opportunities
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Latest 50 of 136 listed here. See the rest on GovTribe.
Opportunities by state
| Rank | State | Open now | Posted, last 90 days |
|---|---|---|---|
| 1 | Utah | 1 | 3 |
| 2 | California | 2 | 2 |
| 3 | Florida | 0 | 1 |
| 4 | Massachusetts | 0 | 1 |
| 5 | Texas | 0 | 1 |
Codes under 558
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UNSPSC codes for 558
About NIGP 558
NIGP 558 Mass Transportation — Rail Vehicles and Systems, Class code, encompasses procurement of rail transit fleet maintenance, overhaul, inspection, and ancillary services that state and local transit authorities solicit to sustain streetcar, commuter rail, and paratransit vehicle operations. Recent solicitations reflect hands-on vehicle-system work: Charlotte Area Transit System (CATS) seeks overhauls of CATS IV Streetcar trucks to meet Siemens original equipment manufacturer maintenance intervals at 15-year / 270,000-mile service thresholds (RFP due October 20, 2026); Sarasota County Transit is requesting Pre-Award Buy America Audit, Bus Line Inspection, and Post-Delivery Buy America Audit services for 11 Chevrolet Arboc Spirit of Freedom cutaway 24-foot paratransit vehicles under 49 CFR Part 661 and 663 compliance, with a maximum allowable bid of $50,000 and response deadline of October 26, 2026 (RFQ); and Utah Transit Authority issued a Request for Information on modernization and replacement solutions for electric washer/wiper systems on its commuter rail fleet, with responses due September 25, 2026 (non-binding market research preceding formal procurement). Dallas Area Rapid Transit Authority's procurement of rail lubricant for Automatic Rail Applicators (one-year contract, $50,000 not-to-exceed, 125 units of 35-pound pails) and Harris County's request for feedback on Light Rail Vehicle replacement technical provisions (comment deadline September 23, 2026) signal ongoing fleet sustainment and long-cycle capital planning across transit systems.
Transit authorities and regional transit systems dominate the issuing-body mix, with recent activity concentrated in Florida (Sarasota County Transit, Charlotte Area Transit System in North Carolina, Dallas Area Rapid Transit Authority in Texas, Utah Transit Authority, and Harris County). The procurement environment spans asset inspection and compliance verification (Buy America audits, pre-delivery vehicle validation), mechanical overhaul and refurbishment at OEM standards, specialized component modernization, and consumable procurement (rail lubricants). No set-asides or preference programs are stated in available documentation. Vendors pursuing this code should track transit authority RFP and RFQ cycles, pre-bid or informational meetings at service facilities, and early technical-feedback windows such as Harris County's LRV provisions comment period, which typically precede formal competitive solicitations by months and offer opportunity to shape performance requirements and evaluation criteria before bidding opens.
Quick answers
What is NIGP 558?
NIGP 558 is Mass Transportation - Rail Vehicles and Systems, a class in NIGP 29, Transit Equipment and Related Services, Mass.
What codes are under NIGP 558?
NIGP 558 has 12 codes under it with their own GovTribe pages, including 55814 Car Dumper System Including Electronics and Controls; 55820 Freight Cars; and 55830 Locomotives, Diesel.
Which states post the most state and local bids under NIGP 558?
The states with the most state and local contract opportunities under NIGP 558 posted in the last 90 days are Utah (3), California (2) and Florida (1).
Which UNSPSC codes match NIGP 558?
NIGP 558 maps to 9 UNSPSC codes, including 25121607 Railway or tramway maintenance or service vehicle, 25121719 Railcar General Services and 25121720 Railcar general material rule 63-84.
What is the latest state & local contract opportunity under NIGP 558?
The latest state & local contract opportunity under NIGP 558 is Locomotive/
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