| Chapter 1. | General Provisions |
| Chapter 2. | Administration |
| Chapter 3. | Advertising and Signs |
| Chapter 4. | Alcoholic Beverages |
| Chapter 5. | Amusements |
| Chapter 6. | Animals and Fowl |
| Chapter 7. | Bicycles |
| Chapter 8. | Buildings |
| Chapter 9. | Business and Occupations Generally |
| Chapter 10. | Mobile Storage Structures |
| Chapter 10A. | Conservation Center and Curbside Bulky Waste Collection
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| Chapter 11. | Fire Protection |
| Chapter 12. | Gas |
| Chapter 12A. | Housing Code |
| Chapter 13. | Motor Vehicles and Traffic |
| Chapter 14. | Offenses - Miscellaneous |
| Chapter 15. | Emergency Alarm Systems |
| Chapter 15A. | Tort Claims for Personal Injury or Property Damage Against the Town of Westfield |
| Chapter 16. | Parks and Recreation |
| Chapter 17. | Poles and Wires |
| Chapter 18. | Police |
| Chapter 19. | Storing or Parking Inoperable Motor Vehicles |
| Chapter 19A. | Establishment, Regulation and Licensing for Police Requested and Non-preference Vehicle Towing and Storage Services |
| Chapter 20. | Sewers and Sewage Disposal |
| Chapter 21. | Smoke Control |
| Chapter 22. | Soil Removal and Replacement |
| Chapter 23. | Special Sales |
| Chapter 24. | Streets and Sidewalks |
| Chapter 25. | Subdivisions |
| Chapter 26. | Swimming Pools |
| Chapter 27. | Taxicabs and Limousines |
| Chapter 28. | Trailers |
| Chapter 29. | Trees, Shrubs, Weeds and Other Plant Growth |
| Chapter 29A. | Tree Preservation |
| Chapter 30. | Used Car Lots |
| Chapter 31. | Water |
| Chapter 32. | Public Lands, Buildings and Property |
| Chapter 33. | Hazardous and Non-hazardous Waste, Garbage and Refuse |
| Chapter 34. | Drug-Free School Zones |
| Chapter 35. | Exterior Property Maintenance Code |