In this puzzle, one is required to find abbreviation/acronyms of some United States federal government agencies. Abbreviations/acronyms of state government agencies of United States are NOT permissible. Also, abbreviations specific to non-US government entities CANNOT come into due consideration.

(1) Using only the letters of TONMEC at least once, find a valid 7-letter abbreviation.

(2) Using only the letters of AHSM at least once, find a valid 6-letter abbreviation.

(3) Using only the letters of ACIMRS at least once, find a valid 7-letter abbreviation.

(4) Find a valid anagram of CEFLT in accordance with the given problem conditions.

(5) Using only the letters of CHIN at least once, find a valid 5-letter abbreviation.

(6) Find a valid anagram of ACFMS in accordance with the given problem conditions.

(7) Using only the letters of EORS at least once, find a valid 5-letter abbreviation.