The meaning of the Acronym IFR is...

IFR is

• Interrupt Flag Register

More Meanings For IFR:

• Internal Floating Roof
• Increasing Failure Rate
• Instrument Flight Rules
• International Finals Rodeo
• Interrupt Flag Register
• Instrument Flight Rules
• Instrument Flight Rules
• Interim Final Rule
• Instrument Flight Rules
• I Follow Roads
• Instructional Flight Regulations
• Inspiratory Flow Rate
• Integral Fast Reactor

IFR is also in:

• Architecture
• Assembly
• Electronics
• Meteorology
• Military
• NASA
• Physiology
• Sports
• Transportation
• Unfiled