Does one put Tefillin on Chol Hamoad?
There are different Halachic opinions and as a result customs about this issue. The custom in Eretz Israel is not to. In Chutz Laaretz – the standard Sepharadi and Chassidic custom is not to put on and the standard Ashkenazi custom is to put on. Some say the Bracha silently and some don't recite the Bracha at all and that is the practice preferred by the Mishna Brura 31; 8. In any event the Tefillin should be removed before the recital of the Halel. Ibid 7.