ABS Product Design Assessment (PDA) certificates explained
What a PDA covers, which Sinooutput hatches and doors hold one, and how to use it in your approval package.

Short answer
An ABS Product Design Assessment (PDA) confirms that a product design meets ABS rules for use on ABS-classed vessels or facilities. Sinooutput holds PDAs for its T-bolt and multi-dog hatches, 15" × 23" hatch covers, manhole covers, 4-dog, 6-dog and quick-acting weathertight doors, and kevel chocks; manholes are also approved by Lloyd's Register.
What a PDA is
The American Bureau of Shipping reviews a product's design and materials against its rules and issues a Product Design Assessment certificate with an expiry date. Shipyards reference the PDA number in class submissions so the item does not need a one-off design review.
Sinooutput certificates at a glance
| Certificate | Scope | Expires |
|---|---|---|
| 25-0092892-2-PDA | 18" & 22" T-bolt hatches; 18" × 24" multi-dog hatches | 2029-11-13 |
| 25-0387137-PDA | 15" × 23" multi-dog hatch covers UMC-174 & UMC-774 and variants | 2031-02-12 |
| 26-0546057-PDA | BMHC 15 × 23 manhole covers and variants | 2031-04-08 |
| 26-0537396-PDA | BMHC 18 × 24 manhole covers and variants | 2031-04-08 |
| 26-0590250-PDA | 4-dog weathertight doors | 2031-05-31 |
| 23-2371969-PDA | 6-dog and quick-acting weathertight doors | 2026-04-28 |
| 26-0451521-PDA | Kevel chocks 24"–48" with SWL | 2031-02-12 |
Lloyd's Register approval LAN2500014 covers Sinooutput manholes.
How to use it
Quote the certificate number and part numbers on your equipment list, attach the PDF to the submission, and confirm the expiry date is beyond your delivery date. Our team can send current copies with every quotation.
Frequently asked questions
Are Sinooutput weathertight doors ABS certified?
Yes. 4-dog doors are covered by 26-0590250-PDA; 6-dog and quick-acting doors by 23-2371969-PDA.
Do Sinooutput manholes have Lloyd's Register approval?
Yes, under Lloyd's Register approval LAN2500014.




