Certain states certificates do not expire however many other states have a time frame in which your certificate is good and then will eventually expire, at which point you will need to retake your course.  
 
Never expire: 

  • California 
  • Colorado 
  • Kentucky 
  • Louisiana 
  • Minnesota 
  • Mississippi 
  • Nevada  
  • Tennessee 
  • Texas 
  • Virginia 

 

6 months:  

  • Alabama 
  • Missouri

 

1 year: 

  • Georgia 
  • Indiana 
  • Iowa 
  • Kansas 

 

2 years: 

  • Florida 
  • Montana 
  • New York 
  • Washington

 

3 years: 

  • Arkansas 
  • Michigan 
  • Oklahoma

 

4 years: 

  • Illinois 

 

5 years: 

  • South Carolina 

 

10 years: 

  • Pennsylvania