
1) Attendance check 2) Count 3) Head count 4) Tallying method
Found on
https://www.crosswordclues.com/clue/headcount

HeadCount is a nonpartisan organization that works with musicians to promote participation in democracy in the United States. It is best known for registering voters at concerts – having signed up 300,000 voters since its launch in 2004. It also encourages voter turnout and general civic participation. Some of its higher profile activity include...
Found on
http://en.wikipedia.org/wiki/HeadCount

A measure of the size of the workforce that counts all people equally regardless of their hours of work. See also Full-Time Equivalent.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.