Process Systems Engineering LLC provides Professional Engineering services including Industrial Automation and Process Safety Engineering for the Chemical, Pharmaceutical, Petrochem and Oil & Gas industries. Process Automation Engineering including control network design, bus communications and hazardous location solutions. Process Safety Engineering services including OSHA PSM compliance, PHA, LOPA and ISA84 Safety Instrumented Systems. SIS lifecycle management services including verification, validation and functional safety assessment and auditing. ISA84 SIS Expert. www.prosyseng.com PSE manufactures SIS-TAG® brand Safety Instrumented System Device Identification Tags. SIS-TAGs provide for high visibility and asset management of safety critical devices in harsh environments in the process industries. www.shop.sis-tag.com