http://insidetowers.com/osha-tightens-rules/
https://www.osha.gov/OshDoc/Directive_pdf/CPL_02-01-056.pdf
Executive Summary
This instruction provides general enforcement guidance and procedures for use by compliance officers during inspections involving hazards associated with using a hoist to take employees to or from workstations on communication towers. This directive applies to all work activities on communication towers that involve the use of a personnel hoist.
Significant Changes
This directive replaces CPL 02-01-36, dated March 26, 2002. The previous directive provided compliance guidance for hoisting personnel to or from their workstations during new tower erection only. This directive covers all hoisting of personnel to or from workstations on communication towers