Dangerous Goods Security & High Consequence Dangerous Goods

Key Takeaways

  • IATA DGR Section 1.6 security provisions aim to prevent the unauthorized access, theft, or misuse of dangerous goods in acts of unlawful interference.
  • High Consequence Dangerous Goods (HCDG) are materials with potential for misuse in terrorist events leading to mass casualties or severe socio-economic disruption.
  • Shippers and operators handling HCDG must adopt, implement, and periodically review a written Security Plan.
  • All personnel handling dangerous goods must undergo general security awareness training and background verification prior to unescorted access.
Last updated: August 2026

Dangerous Goods Security & High Consequence Dangerous Goods

While traditional dangerous goods regulations focus on safety—preventing accidental spills, fires, or explosions caused by improper packaging or handling—aviation security addresses intentional unlawful acts. Following international civil aviation mandates under ICAO Annex 17 (Security) and Annex 18, IATA DGR Section 1.6 establishes mandatory security provisions to prevent the theft, sabotage, or malicious misuse of dangerous goods.


1. Scope of Security Provisions & Responsibilities

Security provisions apply across the entire aviation logistics chain. Shippers, freight forwarders, ground handling agents, and operators share responsibility for safeguarding dangerous goods cargo against unauthorized access.

Core Security Mandates (DGR Section 1.6.1 – 1.6.3)

  • Security Awareness Training: Personnel engaged in the transport of dangerous goods must receive security awareness training commensurate with their duties. This training must cover security risks, methods to recognize security threats, actions to take in the event of a security breach, and awareness of corporate security plans.
  • Personnel Background Verification: Prior to offering unescorted access to dangerous goods cargo facilities or aircraft holds, employers must verify the identity and background of employees.
  • Physical Access Controls: Operators and facility managers must maintain secure cargo zones, badged access portals, perimeter fencing, and surveillance to prevent unauthorized persons from approaching dangerous goods storage areas.
  • Information Security: Shipping documentation, SDDG data, and NOTOC details must be protected against unauthorized disclosure to prevent malicious tracking of sensitive cargo movements.

2. High Consequence Dangerous Goods (HCDG)

Certain dangerous goods present extreme risks if misused in acts of terrorism or sabotage. Regulations classify these hazardous items as High Consequence Dangerous Goods (HCDG).

Definition of HCDG

Under DGR Section 1.6.4, High Consequence Dangerous Goods are defined as those materials that have the potential for misuse in a terrorist event and which may, as a consequence, result in serious consequences such as mass casualties, mass destruction, or severe socio-economic disruption.

                       HIGH CONSEQUENCE DANGEROUS GOODS (HCDG)

  ┌─────────────────────────┐  ┌─────────────────────────┐  ┌─────────────────────────┐
  │    CLASS 1 EXPLOSIVES   │  │   CLASS 2.3 TOXIC GAS   │  │   CLASS 6.1 TOXIC PG I  │
  │  Div 1.1, 1.2, 1.3, 1.5 │  │ Any Toxic Gas Container │  │ Highly Toxic Liquids &  │
  │  Mass Detonation Threat │  │ Poison Inhalation Hazard│  │ Solids in PG I Packaging│
  └─────────────────────────┘  └─────────────────────────┘  └─────────────────────────┘
  ┌─────────────────────────┐  ┌─────────────────────────┐  ┌─────────────────────────┐
  │   CLASS 6.2 INFECTIOUS  │  │   CLASS 7 RADIOACTIVE   │  │    CLASS 3 / 4.1 / 8    │
  │ Category A (UN 2814,    │  │ High-Activity Sources   │  │ Bulk PG I & Desensitized│
  │ UN 2900, UN 3549)       │  │ >3000 A1 / 3000 A2      │  │ Explosives (UN 3379)    │
  └─────────────────────────┘  └─────────────────────────┘  └─────────────────────────┘

Threshold List of High Consequence Dangerous Goods

The following materials are classified as HCDG across hazard classes:

Hazard Class / DivisionHCDG Material DescriptionSpecific Threshold / Scope
Class 1 (Explosives)Divisions 1.1 and 1.2; Division 1.3 compatibility group C; Division 1.5All quantities offered for transport
Class 2.3 (Toxic Gases)Gases meeting Division 2.3 poison inhalation criteriaAny quantity (excluding aerosols)
Class 3 (Flammable Liquids)Flammable liquids of Packing Group I & IIBulk quantities only
Class 3 / Division 4.1 (Desensitized explosives)Desensitized explosives (e.g., UN 3379 liquid, Class 3; UN 3380 solid, Division 4.1)All quantities
Class 6.1 (Toxic Substances)Toxic substances belonging to Packing Group IAll PG I packagings
Division 6.2 (Infectious)Category A Infectious Substances (UN 2814, UN 2900, UN 3549)All quantities
Class 7 (Radioactive)High-activity radioactive materialActivity greater than 3,000 A1 (special form) or 3,000 A2 (all other), or 1,000 TBq, whichever is lower

3. Mandatory Security Plans (DGR Section 1.6.4)

Shippers, freight forwarders, and operators involved in the transport of High Consequence Dangerous Goods must adopt, implement, and periodically review a written Security Plan.

Required Components of a Corporate Security Plan

A compliant Security Plan must address, as a minimum, the following operational elements:

  1. Specific Allocation of Security Responsibilities: Designation of qualified, competent security officers with explicit authority to implement and oversee security protocols.
  2. Vulnerability Assessment: Detailed risk evaluation of dangerous goods transport operations, including temporary warehouse storage, transshipment points, and cargo handling zones.
  3. Operational Controls: Clear statements of physical security measures taken to mitigate risks, including badged access, vehicle inspection, barrier protection, and alarm monitoring.
  4. Security Threat Reporting Procedures: Standard operating procedures for reporting and investigating security breaches, suspicious shipments, or theft to law enforcement and civil aviation authorities.
  5. Security Plan Testing & Review: Procedures for annual testing of security measures and mandatory periodic reviews to keep plans updated against emerging threats.
  6. Information Protection: Policies restricting access to shipping documentation, electronic SDDG files, NOTOC data, and routing schedules to authorized personnel only.
  7. Records of Dangerous Goods: Records of the dangerous goods (or types of dangerous goods) handled, so that quantities and movements can be reconciled.
  8. Personnel Security Verification: Procedures to verify that background checks and employee vetting are maintained continuously for all staff handling HCDG.

4. Operational Access Controls & Verification

When HCDG cargo moves through freight terminals, operators must verify that the driver tendering the goods represents an authorized carrier. Ground handling staff must verify photo identification, company credentials, and shipping authorization before releasing or accepting HCDG packages.

If a security breach or suspicious package is identified, cargo handling must cease immediately, the affected zone must be isolated, and the corporate security officer alongside national civil aviation security authorities must be notified.

Test Your Knowledge

Which of the following dangerous goods consignments is classified as a High Consequence Dangerous Goods (HCDG) under IATA DGR Section 1.6?

A
B
C
D
Test Your Knowledge

Entities involved in transporting High Consequence Dangerous Goods (HCDG) are legally required to establish which of the following operational measures under DGR Section 1.6.4?

A
B
C
D
Test Your Knowledge

What is the primary objective of dangerous goods security provisions set forth in IATA DGR Section 1.6?

A
B
C
D