Read OceanGate's 4-page waiver signed by a would-be Titan passenger listing all the ways they could die in the 'experimental' sub

• OceanGate required Titan passengers to sign a waiver that mentioned death numerous times.
• It referred to the submersible as "experimental" 3 times in the document reviewed by Insider.

Passengers who planned to dive on the Titan submersible had to sign a waiver that mentions death 3 times on the first page.

The release of liability agreement lists a number of ways passengers on a trip to the Titanic could die, according to the document reviewed by Insider.

They included being subjected to "extreme pressure" or any other failure of the sub, "unpredictable" conditions such as oceanic or atmospheric, and from boarding "small vessels and other equipment."

Other risks of death covered in the waiver include being exposed to high-pressure gasses, pure oxygen servicing and high-voltage electrical systems, the document stated.

It noted that the "experimental" sub was constructed using materials that have "not been widely used" for other subs, and reminded passengers that the Titan sub hadn't been certified or approved by regulatory bodies.

By signing the waiver, passengers also gave up the right to take legal action for injury or "any other loss."

Mike Reiss, who traveled on the Titan sub last year, previously told BBC News that death was "never far from your mind" given the number of times it was mentioned in the waiver.

Reiss, a writer for "The Simpsons," said: "So nobody who's in this situation was caught off-guard – you all know what you are getting into."

An OceanGate representative told Insider it was "unable to provide any additional information" about the waiver.

Read the full OceanGate waiver and release signed by one would-be passenger: