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Commercial Diving

Diving contractors intending to undertake any diving activity in the Tidal Thames must first obtain permission of the appropriate Harbour Master. To obtain that, the Diving Supervisor is required to fill in and submit the Diving Permit to Work Form, together with copies of documents stated in the checklist.

Click here to download a PDF version of the form.

Please send relevant documents to the appropriate Harbour Master, giving a reasonable amount of time to assess your diving operation:


Diving upriver of Dagenham/Crossness

The Harbour Master Upper District
Tel: 0207 7437908  (0800 - 1700)
Or email - HMUDiving@pla.co.uk

Diving at, and downriver of, Dagenham/Crossness

The Harbour Master Lower District
Tel: 01474 562299 (0800 - 1700)
Or email - LowerDistrictEnquiry@pla.co.uk

Tips on required documents

Submitted documents must be current. There is no need to resubmit previous documents that remain current, unless requested.

Project plan – should include, but is not limited to:

  • Location, date and time of planned works
  • Diving team members’ names
  • Risk assessment, covering the task to be undertaken
  • Emergency procedure

Certificates of Competence must be approved by the Health and Safety Executive.  Other Certificates, i.e. issued by BSAC (British Sub Aqua Club) or PADI (Professional Association of Diving Instructors) are not acceptable.