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No. Group Timeframe Score Key Area Criticality Fully Addressed Addressed, Monitoring Addressed, Not Adequately Not Addressed Notes
1 Crosscut     Materials Compatibility            
1.1 Crosscut ♦ 20 Embrittlement High     X    
1.2 Crosscut ♦ 20 Purity Effects High     X    
1.3 Crosscut ♦ 20 Pressure Level High     X    
1.4 Crosscut ♦ 20 Temperature Range High     X    
1.5 Crosscut ♦ 40 Pressure and Temperature Interactions High       X  
1.6 Crosscut ♦ 20 Testing Methods High     X    
1.7 Crosscut ♦ 20 Higher Strengths High     X    
1.8 Crosscut ♦ 40 Loss of Fatigue and Impact Strength High       X  
2 Pipeline     Hydrogen Piping and Pipelines Codes and Standards           A
3 Pipeline ◊ 40 Class Locations High       X  
4 Pipeline ♦ 40 Conversion to Service High       X  
5 Pipeline ◊ 24 Customer Notification Med       X  
6 Pipeline ◊ 24 Composite Reinforced Pipe Med       X  
7 Pipeline ♦ 20 Pipe Design High     X   A
8 Pipeline ♦ 20 Pipeline Component Design High     X    
9 Pipeline ♦ 20 Welding of Steel High     X    
10 Pipeline ♦ 40 Joining Other than Welding High       X  
11 Pipeline ♦ 20 Construction Requirements High     X    
12 Pipeline ◊ 24 Customer Meters, Regulators, and Service Lines Med       X  
13 Pipeline ◊ 40 Corrosion Control High       X  
14 Pipeline     Test Requirements            
14.1 Pipeline ♦ 10 ASTM F519 Hydrogen Embrittlement Test High   X      
14.2 Pipeline ♦ 20 Tensile Tests High     X    
14.3 Pipeline ♦ 20 KIH and KIC Stress Intensity Factors High     X    
14.4 Pipeline ♦ 20 Fatigue Crack Growth High     X    
14.5 Pipeline ♦ 20 Burst High     X    
14.6 Pipeline ◊ 20 Composite Pipe High       X  
14.7 Pipeline ◊ 40 Plastic Pipe High       X  
15 Pipeline ♦ 40 Uprating High       X  
16 Pipeline     Operations            
16.1 Pipeline ◊ 20 Procedural Manual for Operations, Maintenance, and Emergencies High     X    
16.2 Pipeline ◊ 40 Change in Class Location High       X  
16.3 Pipeline ◊ 40 Continuing Surveillance High       X  
16.4 Pipeline ◊ 40 Damage Prevention Program High       X  
16.5 Pipeline ♦ 12 Emergency Plans Med     X    
16.6 Pipeline ◊ 24 Public Education: Emergencies Med       X  
16.7 Pipeline ◊ 40 Investigation of Failures High       X  
16.8 Pipeline ♦ 20 Maximum Allowable Operating Pressure: Steel and Polyethylene Pipelines High     X    
16.9 Pipeline ♦ 12 Maximum Allowable Operating Pressure: High Pressure Distribution Systems Med     X    
16.10 Pipeline ◊ 12 Maximum And Minimum Allowable Operating Pressure: Low Pressure Distribution Systems Med     X    
16.11 Pipeline ♦ 40 Odorization of Gas High       X  
16.12 Pipeline ♦ 40 Tapping Pipelines Under Pressure High       X  
16.13 Pipeline ♦ 40 Purging of Pipelines High       X  
17 Pipeline     Maintenance            
17.1 Pipeline ◊ 12 Transmission Lines: Patrolling Med     X    
17.2 Pipeline ♦ 40 Transmission Lines: Leakage Surveys High       X B
17.3 Pipeline ♦ 20 Transmission Lines: Repair of Leaks, Welds, etc. High     X    
17.4 Pipeline ◊ 12 Distribution Systems: Patrolling Med     X    
17.5 Pipeline ♦ 40 Distribution Systems: Leakage Surveys High       X B
17.6 Pipeline ♦ 12 Test Requirements for Reinstating Service Lines Med     X    
17.7 Pipeline ◊ 40 Abandonment or Deactivation of Facilities High       X  
17.8 Pipeline ♦ 12 Compressor Stations: Reliefs and Combustible Storage Med     X    
17.9 Pipeline ♦ 20 Compressor Stations: Gas Detection High     X    
17.10 Pipeline ♦ 12 Pressure Limiting and Regulating Stations: Inspection, Testing, Reliefs, etc. Med     X    
17.11 Pipeline ♦ 12 Valve Maintenance: Transmission and Distribution Lines Med     X    
17.12 Pipeline ◊ 12 Vault Maintenance Med     X    
17.13 Pipeline ♦ 40 Prevention of Accidental Ignition High       X  
17.14 Pipeline ♦ 40 Qualification of Pipeline Personnel High       X  
17.15 Pipeline ♦ 40 Pipeline Integrity Management High       X  
18 Transport     Hazard and Packaging Class for Hydrides, Cryogas, Physisorption, Reactives            
18.1 Transport ♦ 12 Tests for Appropriate Class Determination Med     X   C
18.2 Transport ♦ 40 Packaging Instructions for Micro Metal Hydride Hydrogen Storage Systems High       X  
18.3 Transport ♦ 40 Packaging Instructions for Portable Metal Hydride Hydrogen Storage Systems High       X  
18.4 Transport ♦ 20 Reactive Hydrogen Storage May Be Mixtures High     X    
19 Transport     Emergency Response            
19.1 Transport ♦ 10 Emergency Response Information: High Pressure Gas, Steel High   X      
19.2 Transport ♦ 20 Emergency Response Information: High Pressure Gas, Composite High     X    
19.3 Transport ♦ 20 Emergency Response Information: Cryogenic High     X    
19.4 Transport ♦ 20 Emergency Response Information: Metal Hydride High     X    
19.5 Transport ◊ 20 Emergency Response Information: Cryogas High     X    
19.6 Transport ◊ 20 Emergency Response Information: Physisorption High     X    
19.7 Transport ◊ 20 Emergency Response Information: Complex Hydrides High     X    
19.8 Transport ♦ 20 Emergency Response Information: Reactive (Including Methanol) High     X    
20 Transport ♦ 20 Training High     X    
21 Transport ♦ 12 Security Plans Med     X    
22 Transport ◊ 24 Filling and Purging Requirements for Advanced Media Med       X  
23 Transport ♦ 24 Filling and Purging Requirements for High Pressure Containers Med       X  
24 Transport ♦ 24 Loading and Unloading Requirements for Composite Containers Med       X  
25 Transport     Container Specifications            
25.1 Transport ♦ 40 Container Specifications for Composite Storage High       X C
25.2 Transport ♦ 40 Container Specifications For Metal Hydride Based Storage High       X C
25.3 Transport ♦ 24 Container Specifications For Reactive Type Storage Med       X C
26 Transport ♦ 20 Composite/Novel Media Tube Trailer Specifications High     X    
27 Transport ◊ 12 Composite/Novel Media Portable Tank Specifications Med     X    
28 Transport ◊ 4 Continuing Qualification and Maintenance Low     X    
29 Transport ♦ 40 Mobile Fuelers, Treatment of Gas Storage Containers High       X  
30 Transport     Aircraft Carriage            
30.1 Transport ♦ 40 Aircraft Carriage: Hydride Systems High       X  
30.2 Transport ♦ 40 Aircraft Carriage: Hydride Systems in Appliances High       X  
31 Transport ♦ 20 Pressure Relief Devices: High Pressure High     X    
32 Transport ♦ 20 Pressure Relief Valves: High Pressure High     X    
33 Transport ♦ 20 Valves: High Pressure High     X    
34 Transport ♦ 20 Welding High     X    
35 Transport ♦ 20 Tubing and Fittings: High Pressure High     X    

♦ Near term: 0 to 5 years

◊ Long term: 5 to 15 years

A Higher order--work in other areas will define requirements

B Sensor technology will influence leak survey requirements

C System-level consideration/requirements
Research and Innovative Technology Administration (RITA) • U.S. Department of Transportation (US DOT)
1200 New Jersey Avenue, SE • Washington, DC 20590 • 800-853-1351 • E-mail RITA

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