CRT

CRT or Crt may refer to:

Law

• Charitable remainder trust, United States
• Civil Resolution Tribunal, Canada
• Columbia River Treaty, Canada–US, 1960s

Science, technology, and mathematics

Medicine and biology

• Calreticulin, a protein
• Capillary refill time, for blood to refill capillaries
• Cardiac resynchronization therapy and CRT defibrillator (CRT-D)
• Catheter-related thrombosis, the development of a blood clot related to long-term use of central venous catheters
• Certified Respiratory Therapist
• Chemoradiotherapy, chemo- and radiotherapy combined
• Cognitive Retention Therapy, for dementia
• Corneal Refractive Therapy, in optometrics
• CRT (genetics), a gene cluster

Social sciences

• Cognitive reflection test, in psychology
• Critical race theory, an academic framework of analysis
• Current reality tree (theory of constraints), in process management

Technology

• Cathode-ray tube, a display
• Microsoft C Run-Time library
• SecureCRT, formerly CRT, a telnet client
• .crt, X.509 Certificate filename extension

Other uses in science and mathematics

• Chinese remainder theorem, in number theory
• Crater (constellation), in astronomy (abbreviated Crt)

Transport

• Canal & River Trust, England and Wales
• Changchun Rail Transit, China
• Chongqing Rail Transit, China
• Connecticut River Transit, a defunct American bus service
• Cross River Tram, a defunct proposal in London, England
• CRT Group, an Australian transport company
• Chicago Rapid Transit Company, a defunct American rail company

Other uses

• Canadian Railway Troops, WWI
• Claiming Rule Teams, in motorcycle racing
• Connecticut Repertory Theatre, University of Connecticut
• Correctional Emergency Response Team
• Iyojwaʼja Chorote, a language in Salta province, Argentina, ISO 639 code