Talit Katan: Blessings: Shabbat or Jewish Festival Talit Katan

Situation You switch to a special talit katan right before Shabbat and Jewish festivals.
What To Do You do not need to say another blessing over the special talit katan if to switch:
  • Is your normal intention (even if you did not specifically intend to switch when you put on your talit katan that morning), or
  • Is NOT your normal intention but you did intend to switch later that afternoon. 
You must say another blessing if to switch:
  • Is not your normal intention and you also did not intend to switch when you put on the talit katan that morning.