| Abbreviation | Definition |
|---|---|
| CWCM | Certified Child Welfare Case Manager |
| CWD | County Welfare Department |
| CWH | City WithHolding Tax |
| CWO | Child Welfare Organizer |
| CWPCP | Chico Water Pollution Control Plant |
| CWPCPEP | Chico Water Pollution Control Plant Expansion Project |
| CYDS | Children and Youth Development Services |
| CYFD | Children, Youth and Families Department |
| CZ | Canal Zone |
| CZO | Certified Zoning Official |
| D | Dallas |
| D.A. | Dearness allowance |
| D.P.H. | Department of Public Health |
| D.W.S. | Department of Water Sewer |
| D.W.S. | Department of Water & Sewer |
| DAAA | Division of Alcoholism and Alcohol Abuse |
| DAAS | Department of Aging and Adult Services |
| DABK | District Attorney Brooklyn |
| DAC | Derived Air Concentration |
| DAC | District Advisory Council |