Known Shipper and Regulated Agent Programs for Air Cargo

The quote said "next flight out", the forwarder confirmed the booking, and the cargo still sat at the airport overnight. The shipper had never been vetted as known, so the pallets could not go on the passenger aircraft that carried most of the lane's belly capacity. They waited for a freighter, the rate changed, and the invoice arrived with a screening charge nobody had budgeted.

Air cargo security status is a pricing and lead-time input, not just a compliance box. In the US, an indirect air carrier must vet shippers under a TSA known shipper program and all cargo on passenger aircraft must be screened. In India, cargo reaches the aircraft through a BCAS-approved regulated agent or known consignor, or the airline applies the controls itself. A buyer who knows which route the freight takes can predict the charge, the cut-off and the failure points before tendering.

• What this guide explains: the US chain of known shipper, indirect air carrier and certified screening facility, and the Indian chain of known consignor, regulated agent and airline, with the rules behind each.
• What a buyer can use: a worked invoice in USD ($) and INR (₹) with audit checks, a custody incident trace, a booking-gate record and a procurement checklist.

Why security status decides which aircraft your cargo can board

Security status determines aircraft eligibility, and aircraft eligibility drives price and transit. In the US, TSA ties a shipper's access to passenger aircraft to known shipper status, and everything that goes on a passenger aircraft must be screened. In India, no cargo is loaded without security controls such as X-ray screening and physical search.

The US requirement comes from 49 U.S.C. 44901(g), which directs the Secretary of Homeland Security to operate a system to screen 100 percent of cargo carried on passenger aircraft. TSA's cargo programs page explains that its Known Shipper Management System identifies and approves known shipper status, which allows qualified shippers to ship on passenger aircraft. All-cargo aircraft carry freight under the operators' own security programs, which TSA does not publish.

Passenger-aircraft cargo screening in the US rests on 49 U.S.C. 44901(g), which requires a system to screen 100 percent of cargo on passenger aircraft by x-ray, explosives detection, trace detection, certified canine teams or physical search with manifest verification; a certified cargo screening facility under 49 CFR Part 1549 can screen before tender.

In India, rule 43(2) of the Aircraft (Security) Rules, 2023 states that no cargo shall be loaded without appropriate security controls, including X-ray screening and physical search, unless the Director General of the Bureau of Civil Aviation Security (BCAS) exempts it in writing. Rule 43(1) says the controls are applied by trained regular employees of the airline, a regulated agent or a known consignor.

The US chain: shipper, indirect air carrier, screening facility, airline

Most US shippers reach an airline through an indirect air carrier (IAC), the forwarder that consolidates cargo under a TSA-approved security program. The IAC vets the shipper, accepts the cargo, keeps known and unknown freight apart, and either has it screened at a certified facility or tenders it to the airline for screening.

Part 1548 of 49 CFR sets the IAC's duties. Section 1548.5 requires the IAC to adopt and carry out its security program. Section 1548.9(b) obliges the IAC to refuse to offer cargo for air transport if the shipper does not consent to search or inspection. Section 1548.21 lets an IAC screen cargo for passenger aircraft only if it is a certified cargo screening facility under Part 1549. TSA's 2024 renewal-cycle rule put the number of IACs at about 3,800.

• Known shipper program, 1548.17: for cargo loaded in the US, the IAC must determine the shipper's validity and integrity as its program provides, and keep known shipper cargo separate from unknown shipper cargo.
• Threat assessments, 1548.15: staff with unescorted access to cargo bound for passenger aircraft, or to screened cargo, and staff who screen, need a completed security threat assessment before they start.
• Program renewal, 1548.7: since 11 March 2024 the IAC program renews every three years; the renewal application is due at least 30 days before the 36th month, and changes in owners or locations must be notified within 30 days.
• Certified screening, Part 1549: manufacturers, warehouses, distribution centres and logistics providers can be certified to screen before handing cargo over, under strict chain-of-custody rules.

Indirect air carriers tendering cargo to US passenger flights must run a known shipper program under 49 CFR 1548.17 that vets each shipper in TSA's KSMS and keeps known and unknown cargo separate, and since 11 March 2024 the IAC security program renews every 3 years under 49 CFR 1548.7 rather than annually.

Becoming a known shipper and what the forwarder will ask for

A shipper does not apply to TSA directly for most purposes; it becomes known through the IAC or airline it tenders to, which submits the shipper into TSA's Known Shipper Management System (KSMS). The vetting criteria sit in security programs that TSA does not publish, so expect the forwarder to request documents without explaining every reason.

From the shipper's side, the practical steps are predictable. The forwarder collects legal entity details, the physical addresses the cargo leaves from, contacts and business references, then submits them for verification. TSA's information-collection notices describe KSMS as the electronic route for known shipper submissions, with a manual alternative where a security program allows it. Approval for a new IAC program, by contrast, takes about 90 to 120 days according to TSA's cargo page.

• Facility addresses: list every building cargo is picked up from; a new warehouse that is not on file can make an otherwise known shipper unknown for that pickup.
• Consent to inspection: the shipping terms should accept search and inspection, because 49 CFR 1548.9(b) requires refusal without consent.
• Change notices: tell the forwarder about moves, mergers and name changes, since 49 CFR 1548.17(b) requires the IAC to submit corrections and updates when it learns of changes.
• Multiple forwarders: status is established through each tendering party's program, so confirm it with every IAC on the routing guide, not just the main one.

Shipping on passenger aircraft also means the cargo will be screened, whether by a certified facility, the IAC acting as one, or the airline. Screening adds a line to the invoice and a step to the timeline. Large shippers with steady volume sometimes certify their own dock as a screening facility so cargo leaves already screened and sealed.

India's chain: known consignor, regulated agent and the airline

India's Aircraft (Security) Rules, 2023 recognise two parties outside the airline that can apply security controls: a known consignor, which ships its own goods under BCAS-approved procedures, and a regulated agent, which screens and secures cargo for others. Cargo from anyone else is controlled by the airline itself under rule 44(2).

Rule 2 defines a known consignor as one who originates cargo or mail for its own account and whose procedures and establishment are approved by the Director General to allow carriage on any aircraft. A regulated agent is an agent, freight forwarder or other entity that does business with an aircraft operator and provides security controls accepted or required by the Director General. The rules were notified as G.S.R. 596(E) on 9 August 2023 under the Aircraft Act, 1934.

• Airline duty, rule 44(1): for consignments from a regulated agent or known consignor, the airline inspects as the Director General specifies, applies extra measures to high-risk cargo and safeguards the consignment from acceptance until loading.
• Agent duty, rule 46(2): the regulated agent safeguards the consignment until it is handed to the airline's or security provider's staff, secures its buildings and vehicles, maintains security documents and trains its security staff.
• Approval, rules 11 to 13: entities need BCAS security clearance and an approved security programme, apply for renewal in the form the Director General specifies, and can face suspension for up to one year or cancellation.
• Records, rule 57: every entity retains records for the period and in the manner the Director General specifies.

Regulated agents in India apply X-ray screening and physical search under rule 43 of the Aircraft (Security) Rules, 2023 and must safeguard each consignment under rule 46 until it reaches airline security staff; the Director General of BCAS may suspend an approved security programme for up to one year under rule 12.

The Bharatiya Vayuyan Adhiniyam, 2024 repealed the Aircraft Act, 1934 from 1 January 2025. Section 43 of the new Act treats rules made under the old Act, to the extent consistent with it, as made under the corresponding provisions of the new one, so the 2023 security rules continue to govern regulated agents. An amendment dated 9 December 2024 added provisions on communicating false threat information, not on cargo screening.

Reading a screening line on the freight invoice in dollars and rupees

Security usually appears as one per-kilogram line, but its basis, its minimum and whether it was charged twice are where overbilling hides. The illustrative invoices below compare a known-shipper booking with a fallback, and show the checks a freight auditor should run. Rates are planning figures, not quotes, and tax lines are left out.

Two patterns account for most disputes. The first is a second screening charge after the forwarder's own handling broke a seal; the shipper should not pay for that. The second is a freighter premium charged to a shipper whose known status lapsed because a new pickup address was never submitted; that one is the shipper's own cost. Weight-break pricing on the freight line itself is explained in our air freight weight breaks guide.

{
  "shipmentId": "SHP-26-11-04417",
  "origin": "US",
  "shipper": {
    "status": "KNOWN",
    "verifiedIn": "KSMS",
    "pickupAddressOnFile": true,
    "checkedAt": "2026-11-13T09:12:00-06:00"
  },
  "screening": {
    "facilityType": "CCSF",
    "method": "XRAY",
    "pieces": 6,
    "piecesScreened": 6,
    "sealIds": ["TT-558201", "TT-558202"],
    "sealsIntactAtTender": true
  },
  "custody": { "driverThreatAssessmentOnFile": true, "vehicleSealed": true },
  "flight": { "aircraftType": "PASSENGER", "acceptanceCutoff": "2026-11-13T18:30:00-06:00" },
  "gate": "RELEASE"
}
Gate rule: RELEASE to a passenger flight only if shipper.status == "KNOWN"
  and piecesScreened == pieces and sealsIntactAtTender == true;
  otherwise HOLD for re-screening or REBOOK on an all-cargo flight.

Chain of custody from the screening belt to the aircraft hold

Screened status is fragile: it lasts only while the cargo stays secured and in the hands of vetted people. A broken seal, an unvetted driver or an unscheduled stop can turn screened cargo back into unscreened cargo, and the airline will treat it that way at acceptance.

In the US, 49 CFR 1548.15 requires security threat assessments for people with unescorted access to cargo bound for passenger aircraft, from the time the IAC accepts it until it transfers the cargo to the airline, and for people with access to cargo already screened. TSA describes the certified screening program as requiring cargo to stay secured from screening until loading. In India, rule 46(2)(a) puts the same duty on the regulated agent until handover, and rule 44(1)(c) on the airline from acceptance until loading.

A screened pallet that lost its status before airline acceptance

The costliest security failures happen between screening and acceptance, during a handover that nobody treats as a security step. The trace below is illustrative, with invented identifiers, and follows a US export that was screened properly and still missed its flight.

1. 13:40, screening: the shipper's certified dock X-rays six pieces for shipment SHP-26-11-04417, records them as screened and applies tamper-evident tape TT-558201 and TT-558202. The forwarder's booking shows a passenger flight with acceptance closing at 18:30.
2. 15:05, unplanned stop: the truck diverts to the forwarder's consolidation warehouse to pick up a second consignment. A warehouse worker re-stacks one pallet to fit the load and cuts tape TT-558202.
3. 17:25, airline acceptance: the airline's agent finds the broken tape, records a discrepancy and treats the pallet as unscreened. The other five pieces are accepted.
4. 18:10, re-screening: the pallet is screened again at the airline's facility, adding a second screening charge. The re-screen finishes after the 18:30 cut-off is missed for that piece, so it moves to the next morning's flight.
5. Next day, the fix: the forwarder's dispatch rule now blocks unscheduled stops for screened cargo, and the dock checks seal numbers against the screening record before the truck leaves.

The broader timing problem of getting cargo, documents and clearances to the terminal before it closes is covered in our guide to air cargo cutoff readiness, which looks at dependency planning across the whole booking. This article focuses on the security status that decides whether accepted cargo can fly on the aircraft that was booked.

Rules a booking system can enforce and judgements left to security staff

Status checks, seal matching and cut-off arithmetic are binary and should stop a booking automatically. Deciding whether an anomaly on an X-ray image is a threat, or whether a consignment is high risk, belongs to trained security staff and cannot be delegated to software, though software can prepare the evidence.

Dangerous goods are a separate gate with their own trained acceptance checks; lithium batteries are one category that needs it, and our guide to lithium battery shipping rules covers that decision. Keep the two gates separate in the booking system so a security clearance is never read as dangerous-goods acceptance.

Procurement checklist for forwarders, screening facilities and agents

Tender air freight on security capability as well as rate: approval status, screening capacity at your cut-off times, custody controls and how re-screening is charged. A cheap rate from a forwarder that cannot keep cargo screened to the aircraft is not cheap.

Security controls on the air leg sit alongside wider programmes such as CTPAT, which addresses supply chain security for goods entering the US; our CTPAT minimum security criteria guide explains how the two differ. More guides on modes, rates and documents are in the logistics and supply chain collection.

If you are tendering air freight and want shipper status, seal checks and screening charge audits built into your booking and freight audit workflow, send us your request for proposal.