USPS moves an enormous amount of mail and packages every day, and a large share of that movement is done through contracted transportation providers. If you’re a trucking company (box trucks, straight trucks, tractors/trailers), the opportunity is real, but the process is structured, compliance-heavy, and very different from broker boards or typical shipper freight.

This guide walks you through exactly how to position, find opportunities, bid, and onboard.

Step 1: Know which USPS contract type you’re actually going after

Before you register anywhere, pick the lane you want to compete in, because USPS uses multiple transportation models:

• Dedicated route contracts (often associated with Highway Contract Routes / contract routes)
• Contract Delivery Service (CDS) style opportunities (route-based, posted as solicitations)
• “As-needed” transportation (USPS has used tools like Freight Auction for surge/spot needs)
• Other logistics/transport systems USPS is modernizing (OIG reporting discusses systems used for solicitation and awards as USPS updates contracting platforms)

Action: Write down your target:

1. Dedicated route stability, 2) “as-needed” flexible loads, or 3) both.

Step 2: Get your compliance house in order (this is where most carriers lose)

USPS transportation contracts are compliance-first. If you can’t prove safety + reliability + insurance/bonding readiness, you’ll struggle to win and/or onboard.

Insurance (baseline expectations)

USPS supplier guidance includes minimums for general liability and auto liability (and notes contracting officers can require higher).

Action: Have your COI and policy declarations ready, and expect higher limits depending on the lane, facility, and equipment.

Bonds (sometimes required)

USPS supplier policy explains multiple bond types and when bonds may be required to protect USPS’s interest.

Action: Talk to your insurance agent/surety provider now so you can move fast if an RFP requires a bond.

Driver + yard/dock safety expectations

USPS issued updated highway contract safety policy guidance (Oct 2025) including on-premises requirements and safety rules for contract drivers.

Also, USPS has been tightening safety requirements for contracted trucking providers (including driver vetting-related changes reported in early January 2026).

Action: Build a simple “USPS Compliance Packet” (PDF) with:

• Insurance + safety program summary
• Driver qualification standards (CDL, MVR checks, drug/alcohol program if applicable)
• SOPs for yard safety, dock procedures, PPE (vest/closed-toe), and incident reporting

Step 3: Register the right way (surface transportation ≠ everything else)

USPS distinguishes registration paths:

• Surface Transportation Suppliers: register in the Logistics Gateway
• Other suppliers / air transportation: use USPS eSourcing registration

Action: If you’re a trucking company doing surface transport, start with Logistics Gateway.

Step 4: Get on USPS’s “interested bidders” list (this is a quiet shortcut)

USPS has a form specifically designed to place you on a list of parties interested in transportation bids:

• PS Form 5436 (Mailing List Application—Mail Transportation Services)

Action (do this even if you register elsewhere):

1. Fill out PS Form 5436 completely (equipment type, interest area, DOT, etc.).
2. Submit it per the form instructions to the contracting office for your area (the form indicates you’ll be added to their list).
3. Repeat for the regions you can realistically serve.

Step 5: Find live opportunities (where USPS actually posts)

USPS itself notes that postal opportunities can be found on SAM.gov and may not be posted inside USPS’s eSourcing portal.

Action: Set up SAM.gov saved searches
Use keywords like:

• “US Postal Service” + “transportation”
• “Contract Delivery Service” / “CDS”
• “Highway Contract Route” / “HCR”
• “mail transportation”
  Then turn on alerts.

(USPS also publishes general supplier guidance and tools pages, but SAM is a primary public listings location per USPS supplier registration guidance.)

Step 6: Build your USPS bid toolkit (before you ever see an RFP)

When a solicitation drops, the winners are the ones who can respond cleanly and quickly.

Your ready-to-go bid folder should include:

• Company overview + capability statement (equipment, geography, staffing, coverage hours)
• Safety plan + compliance packet (from Step 2)
• Insurance + bonding readiness
• Past performance (even if it’s non-USPS: on-time %, claims ratio, shipper references)
• Pricing model template (fixed route vs hourly vs per-mile assumptions)
• Contingency plan (breakdowns, backup drivers, backup equipment)

Pro tip: USPS awards are “best value” oriented in supplier guidance, not just cheapest.

Step 7: Learn the “route economics” before you price anything

USPS transportation work can look attractive until you price it wrong. Route contracts can be won and still lose money if you misjudge:

• Deadhead miles
• Dock wait time
• Required dispatch windows
• Peak season surge
• Equipment requirements (liftgate, trailer size, securement)
• Backup/coverage requirements

Action: Build a route pricing worksheet that includes:

• All-in cost per hour (driver, fuel, maintenance, insurance, overhead)
• All-in cost per mile (linehaul + deadhead)
• A “delay” line item (average dock time assumptions)
• A margin line (don’t bid at break-even)

Step 8: Bid correctly (and document everything)

When you respond:

1. Follow the solicitation instructions exactly (format, attachments, naming, deadlines).
2. Answer every requirement. Don’t “see attached” your way through compliance questions.
3. Make your safety + reliability easy to score (tables, bullet points, clear exhibits).
4. If your price isn’t the lowest, justify best value (coverage plan, spare equipment, performance metrics).

Step 9: Prepare for onboarding like a real transportation vendor

Winning is only half. USPS onboarding typically requires fast, accurate admin work:

• System access and supplier setup (depends on platform)
• Insurance verification and updates
• Driver authorization and compliance confirmations
• Facility access rules and safety enforcement (vests, dock rules, communication)

Action: Assign one person internally as the USPS admin lead (even if it’s you).

Step 10: Treat performance like your next bid depends on it (because it does)

USPS is performance-driven. Safety incidents, late arrivals, missed scans/process failures, and noncompliance can cost you the relationship quickly. USPS has also indicated it will monitor contractor performance and safety data as part of efforts to reduce accidents.

• On-time performance
• Service failures and root cause
• Safety incidents/near misses
• Equipment downtime
• Driver compliance checks

A simple “start this week” checklist

• Choose your target USPS transportation lane (route vs as-needed vs both)
• Register as a surface transportation supplier (Logistics Gateway)
• Submit PS Form 5436 to get on the interested bidders list
• Set SAM.gov saved searches + alerts (USPS confirms SAM is a source of postal opportunities)
• Build your compliance packet (insurance, safety, driver standards)