Contents

Autofill Ontario Future Alteration Combined Sewers Cs1 On00447

Document pre-authorized combined sewer changes without retyping municipal contact details

Municipalities repeat corporation legal name, authorized contacts, and infrastructure descriptions whenever they file Form CS1 to record a future alteration authorized for combined sewers, partially separated sewers, or combined sewage storage tanks under a CLI ECA. This guide is an example of storing them once in hivi.

Official form and source

Start from the official source and always use the current version — form numbers and links can change:

What this form is about

Form on00447 (Form CS1) records pre-authorized future alterations for combined sewer infrastructure under a CLI ECA — confirm Schedule requirements on ontario.ca.

Before you start: what to gather

  • Municipality legal name and business address.
  • CLI ECA number and affected combined sewer components.
  • Authorized contact name, phone, and email.
  • Alteration authorization reference — confirm on ontario.ca.

Confirm the current process on ontario.ca.

How hivi makes it faster

  1. Save it once. Store your municipality name, address, and contact details in your hivi profile.
  2. Keep documents ready. Upload supporting documents to hivi Files so you are not searching at form time.
  3. Autofill the form. Use the hivi Chrome extension on a web form, or fill a PDF from your saved profile inside hivi.
  4. Review and submit yourself through the official channel.

Why do it in hivi

Related Ontario forms repeat the same personal details. Captured once in hivi — stored in Canada, with AI on its own servers — every form starts mostly complete.