provided
(ii) Any secondary construction site(s), defined as any other site(s) where a significant portion of the building or work is constructed, provided that such construction is for specific use in that building or work and does not simply reflect the manufacture or construction of a product made available to the general public, and provided further that the site is either established specifically for the performance of the contract or project, or is dedicated exclusively, or nearly so, to the performance of the contract or project for a specific period of time. A significant portion of a building or work means one or more entire portion(s) or module(s) of the building or work, such as a completed room or structure, with minimal construction work remaining other than the installation and/or final assembly of the portions or modules at the place where the building or work will remain. A significant portion does not include materials or prefabricated component parts such as prefabricated housing components. A specific period of time means a period of weeks, months, or more, and does not include circumstances where a site at which multiple projects are in progress is shifted exclusively or nearly so to a single project for a few hours or days in order to meet a deadline.