Extreme high pressure and high temperature (HPHT) environments are driving the need for advanced technology developments with regards to overall well life integrity. HPHT applications are becoming more common in challenging environments, such as subsea developments and geothermal applications that further require cutting-edge technologies. This session will provide an overview of innovations in advanced equipment design and verification. Advanced validation methods for extreme HPHT equipment (wellheads, trees, liner hangers, etc.) are also discussed.