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   [Certifications & Standards](/articles/certifications-standards)# Getting Back on Board—Alone

 Feb 24, 2021

 

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 ![“NMMA](/sites/default/files/inline-images/nmma-contract-logo.jpg)

![Re-boarding](/sites/default/files/inline-images/re-boarding1.jpg)



**This re-boarding ladder on the Chapparall 191 SunCoast is concealed beneath a latching hatch, can be reached by someone in the water, opened, then the 4-step ladder can be deployed.**To be NMMA certified to ABYC standards means that a boat has a way a person can board, or re-board, a boat from the water unassisted. This means the re-boarding device, most often a folding ladder located at the stern must be accessible to a person in the water, who can deploy it by him or herself without aid. This may seem simple, but it can be a tall order as swim platforms and boat decks look a lot higher from the water than they appear when one is perched safely atop them.

### Boat Building Standards:

### Re-Boarding Ladders

**ABYC Standards--**

- Re-boarding ladders mounted on the stern of a boat should be positioned as far as practicable from the propellers.
- The top surface of the lowest step of the re-boarding ladder should reach at least 22 inches below the waterline.
- The ladder steps or rungs should have slip-resistant surfaces.
- The ladder should be sturdy enough as installed that each step can withstand a vertical downward static load of 400 lb. (182 kg) without permanent damage.

![Re-boarding](/sites/default/files/inline-images/re-boarding2.jpg)

**The re-boarding ladder on the Four Winns Horizon 350 OB is positioned well to one side of the swim platform, away from the props.**- The means of unassisted re-boarding should also be described in the owner’s manual.

![“NMMA](/sites/default/files/inline-images/nmma-contract-logo.jpg)