ABBREVIATIONS AND REFERENCE MARKS - ITEM 135
EXPLANATION OF REFERENCE MARKS
REFERENCE MARK EXPLANATION
{ } Where this reference mark appears, containing a supplement number, it notes that such referenced item or provisions is reissued without change from that supplement. Consult that supplement for effective date of change. (See ITEM 846)
(H) Not subject to further increase.
(NA) Denotes not applicable.
(x) Except as noted.