CSL Continuing Education Classes in Waltham, MA
We hold 5 upcoming in-person class dates in Waltham — the next on September 16, 2026. Every class runs 8:00 AM – 2:00 PM and earns 6 in-class credit hours toward your Massachusetts Construction Supervisor License renewal (Unrestricted or Restricted). We offer more class dates, in more cities, than any other school in Massachusetts.
Map to the Waltham class location
| Day | Date | Credits | |
|---|---|---|---|
| Wednesday | 9/16/2026 | 6-Hour In-Class | Enroll — $99 |
| Wednesday | 10/14/2026 | 6-Hour In-Class | Enroll — $99 |
| Wednesday | 12/2/2026 | 6-Hour In-Class | Enroll — $99 |
| Wednesday | 1/6/2027 | 6-Hour In-Class | Enroll — $99 |
| Wednesday | 2/3/2027 | 6-Hour In-Class | Enroll — $99 |
Need your full renewal package? Pair any in-class date above with our on-line hours:
Unrestricted (12 hours total — $198) ·
Restricted (10 hours total — $178)
Questions? Call (888) 405-7849.
Classes in other cities
Andover · Braintree · Chicopee · Dedham · Foxborough · Hyannis · Leominster · Littleton · Marlborough · Nashua · Natick · Peabody · Pittsfield · Plymouth · Raynham · Sturbridge · Wareham · Woburn