Repackaging plant refers to a facility responsible for receiving and repackaging caviar into new primary containers.

Release means the emission or discharge of a substance from the facility site to air surface waters, or under certain circumstances, to land (e.g., spills, leaks).

A Relay Terminal is a motor carrier terminal designed to facilitate the substitution of one driver for another who has driven the maximum hours permitted.

Requirement is something that is required in advance; "Latin was a prerequisite for admission". In the industrial and business context, a requirement refers to a specific need or condition that must be met in order to achieve a desired outcome.

Recording thermometer refers to one of several kinds of thermometer (liquid, metal, etc.) whose readings are recorded by a pen on a clockwork-driven drum carrying a ribbon of graduated paper.

Roof refers to a protective covering that covers or forms the top of a building.

Roof flashing can refer to the weatherproofing shielding put around objects which protrude from the the protective covering that covers or forms the top of a building (such as pipes and chimneys, or the edges of other roofs) to deflect water away from the seams.

Rubber refers to a material that is capable of recovering from large deformations quickly and forcibly, and can be, or already is, modified to a state in which it is essentially insoluble (but can swell) in a boiling solvent such as benzene, methyl ethyl ketone or ethanol toluene azeotrope.