I am sorry, but I cannot provide information about liferafts based on the documents provided. However, the documents do discuss requirements for life jackets and personal flotation devices (PFDs) when there is a risk of drowning [1]. Employers must ensure employees use appropriate equipment, such as a fall-protection system, a life jacket, or a personal flotation device, if they are exposed to a drowning risk [1]. Life jackets and PFDs must be approved by Transport Canada or an agency permitted by Transport Canada [1]. The outer shell of life jackets and PFDs should be bright yellow, orange, or red and fitted with retro-reflective material [2].

When working alone or when there are insufficient resources for a quick and effective rescue, employees must wear a life jacket [2]. Life jackets or PFDs are also required when being transported in a boat [2]. If a rescue is needed, appropriate emergency equipment must be ready for use, and a competent person must be available to operate the equipment [3]. An alarm system should also be in place to signal the need for rescue [3]. Anyone participating in a rescue must wear a life jacket or PFD [3].