An active clearance is one in which the candidate is presently eligible for access to classified information. A current clearance is one in which a candidate has been determined eligible for access to classified information but is not currently eligible without a reinstatement.
The NCTM Standards evolved over several years, beginning with the 1980 report An Agenda for Action (NCTM, 1980), an important precursor to the NCTM Standards documents. A set of events and circumstances took place in the 1980s that spurred the need for standards and for national direction in mathematics education.
ASTM F2412-11 (Standard Test Methods for Foot Protection) and ASTM F 2413-11 (Standard Specification for Performance Requirements for Protective (Safety) Toe Cap Footwear are the most current footwear consensus standards. This document provides an overview of ASTM F2413-11.