What does CRTL mean?

Looking for the full meaning of CRTL? From the following image, you can find out all definitions of CRTL. If you want, you can also download image file to print.

CRTLCincinnati Right to Life
CRTLColorado Right to Life
CRTLCome Receive the Light
CRTLCommon Run-Time Library
CRTLConsumer Reports Travel Letter