Graham Corporation maintains compliance with multiple quality programs to consistently meet customer requirements and expectations. Graham Corporation has been authorized by The American Society of Mechanical Engineers (ASME) and the National Board of Boiler & Pressure Vessel Inspectors while maintaining certification to (ISO) the International Organization for Standardization. Program certificates are as follows:
| Quality Programs | Designator/Level | Certificate Number |
| ISO 9001:2015 | n/a | Q 921 |
| ASME Section I | S | 4660 |
| ASME Section VIII, Div 1 | U | 79 |
| NBIC - Shop Repairs | R | R-2987 |
| NBIC Authority to Register | U R | n/a |
| Chinese Manufacturing (CML) | A1 | TS2200125-2022 |
| Korea Gas Safety (KGS) | Pressure Vessels, Drums, Heat Exchangers, Others | ES-87 |
| Pressure Equipment Directive (PED) | Module A2 | HSB IE-22-03-031 |
| Ontario Professional Engineering Certificate | n/a | 10980532 |
Graham Quality Program Certificates and associated Quality Manuals (where applicable) are available upon request at Contact Us.
