The colors, black, white, dark gray and light gray, are claimed as a feature of the mark.
Black appears in the letters, "HC", which are superimposed on a light gray letter, "R", upon a white background, framed by a dark gray half square and a light gray half square.
The certification mark, as used by authorized persons, certifies that the goods and services identified by the mark have been audited and found to be eligible for tax-free reimbursement.
"HC"
The mark consists of the letter "H" over "RC" inside a square box. The letter "R" is meant to suggest "reimbursement" while "HC" is meant to suggest "health care".