<prompt> IUCD having the longest life span isProgestaseCu T 380AMirenaNova T  <response>: The time periods for replacement for various IUDs are: - Copper T 200:3years- Multiload Cu 250:3 years - Multiload Cu 375: 5 years- LNG-IUSMirena : 5 years- Cu T 380A : 10 years also known as Paraguard- Nova : 3years - Progestase : 1 years 