The question of how and where adverbs are licensed has relatively been discussed less vigorously. It will be argued here that though the hierarchy suggested in Cinque(1999) reflects the cross-linguistic order of functional heads, it leaves room for a revision for the so-called sentential adverbs and the adverbs modifying NP/DP found in English and Korean. Based on the observations in Bogal-Allbritten(2014) and Lee(2008), the licensing relationship between the syntactic heads and adverbs suggested in Potsdam(1998) will be revised. Also, the hierarchy for adverbs suggested in 박(2000) will be slightly revised for the adverbs modifying NP/DP found in English and Korean.