Clean Water Act County Warning Area Center Weather Advisory Communications Workers of America Center Weather Advisories chemical warfare agents Clean Work Area Chemical Warfare Agent Communication Workers of America Conference Work Area Caution and Warning Annunciator Cognitive Work Analysis Communications Working Area Controlled Work Area Campus Wide Agreement Canada Water Canadian Waferboard Association Canadian Warehousing Association Canadian Western Airlines Career Writers Association Catch Wrestling Association Caution/Warning Advisory caution/warning advisory system CEN WORKSHOP AGREEMENT Cepheid W Virginis A Charles Wood Area Christian Wrestling Alliance Civil Works Aministration Cockcroft-Walton Accelerator Cold-worked and aged