A lid and closure member assembly for placement on a container is provided. The lid includes a cover portion, an access port and an elongated channel defined in the cover portion. The channel may include two opposing side walls, two opposing end walls and a bottom. The channel's side walls can each include an inwardly-projecting lip forming an undercut for slidably receiving a portion of the closure member. The closure member includes an access port cap, a retainer slidably received within the channel and a strap extending between the access port cap and the retainer. The closure member is selectively movable between open and closed positions. The access port cap may cover the access port when the retainer is in a first position within the channel or may be at least partially received within the channel when the retainer is in a second position within the channel.