PSWG Working Group

The Pressure Systems Working Group’s (PSWG) purpose is to improve safety and reliability of Pressure Systems by sharing lessons learned, new information and processes; consulting and learning from each other; and keeping NASA-STD 8719.17, NASA Requirements for Ground-Based Pressure Vessels and Pressurized Systems (PVS) current. The PSWG Working Group consists of the center Pressure Systems Managers and various other interested parties.

PVS Working Group
Cliff Arnold

Clifton Arnold

Pressure Systems Program Executive

Learn more about Pressure Systems Program Executive Clifton Arnold.

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Points of Contact

For details on contacting a Pressure Systems Point of Contact (PoC) for your location, click below.

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SATERN Courses

Ground-Based Pressure Vessels Safety SMA-OS-WBT-275

This stand-alone course addresses the potential hazards and safety precautions associated with ground-based Pressure Vessels and Systems (PVS). It is designed for Safety and Mission Assurance (SMA) professionals, health/safety personnel and any NASA employee who needs a basic understanding of PVS. The goal is to increase their knowledge of pressure system safety so that they can recognize and report some common potential hazards, thus improving safety and helping to ensure the mission.

SMA-OS-WBT-275 Details Launch SATERN
Pressure Vessel Code Application Training SMA-HQ-WBT-306

Pressure vessels are used at every NASA center and facility for everything from shop air and potable water to high-pressure gas storage, hypergolic fuels and cryogenic liquids. Although many vessel applications at NASA are similar to those found in other industries, NASA has some unique applications such as high pressure, irregular use, very old equipment and unique equipment that might require different methods of evaluating or applying the American Society of Mechanical Engineers' Boiler and Pressure Vessel Code, Section VIII, Div. 1. Also, the characteristics of the government contracting process make clear, complete and accurate statements of work essential during procurements. This course was developed to cover the application of the code at NASA centers and other NASA facilities. It includes how the code is used to specify, procure, install and evaluate vessels.

SMA-HQ-WBT-306 Details Launch SATERN

Policy and Guidance


NPD 8715.1 NASA Safety and Health Programs

This NASA policy directive describes the roles and responsibilities, the required safety and health programs, and the associated agency requirements that provide the framework for the NASA's Safety and Health Program.

See NPD 8715.1 
NASA-STD 8719.17 NASA Requirements for Ground-Based Pressure Vessels and Pressurized Systems (PVS)

The purpose of this document is to provide requirements that, if followed, will help to ensure safe, reliable operation of ground-based PVS through verification of their compliance with the higher level policy provided in NPD 8710.5, NASA Safety Policy for Pressure Vessels and Pressurized Systems, NPR 8715.3, NASA General Safety Program Requirements, applicable federal regulations, and national consensus codes and standards. 

See NASA-STD 8719.17 

Occupational Safety and Health Administration

29 CFR 1910 Occupational Safety and Health Standard, General Industry

The occupational safety and health standards included in this portion of the Code of Federal Regulations. This part carries out the directive to the Secretary of Labor under section 6(a) of the Act. It contains occupational safety and health standards that have been found to be national consensus standards or established Federal standards.

See 29 CFR 1910 
29 CFR 1960 Basic Program Elements for Federal Employee Occupational Safety and Health Programs

This part of the Occupational Safety and Health Administration regulations covers safety of federal employees by making applicable to them the general industry regulations found in 29 CFR 1910 and the construction regulations in 29 CFR 1926. Because most of the work of NASA, and particularly that related to pressure systems, is not related to construction, the general industry regulations have the greatest influence on us.

See 29 CFR 1960