AEC PLC:

 Antenna Engineering Console Programmable Logic Control

agency staff:

 Effort hired through external agencies

BBP:

 Bloodborne Pathogens

CEC PLC:

 Carousel Engineering Console Programmable Logic Control

SSA:

 Site Safety Advisor

MT:

 Abbreviation for the word: "empty"

hand truck:

 Trolley

OPIM:

 Other Potentially Infectious Materials

OSHA

 U.S. Department of Labor, Occupational Safety and Health 
 Administration:  http://www.osha.gov/

PLC:

 Programmable Logic Control

PLD:

  Personal Lockout Device

posted area:

 An area where warning signs are placed

seconded:

 Staff on loan from other organizations

swarf:

 Small chips and debris from machining operations.

tire:

 This is commonly used to mean the tire mounted on the rim

trolley:

 Dolly - a low mobile platform that rolls on casters, used
 for transporting heavy loads