Waste carriers in Scotland
Scottish operators register with SEPA rather than the Environment Agency, so the number you see here is a SEPA registration for transporting waste rather than an English CBDU number. It carries the same weight: it is the SEPA registration, now issued under the Environmental Authorisations (Scotland) Regulations, that allows the operator to transport your waste legally, and the waste must then go to a licensed site.
Permits and tenement streets
Skips on the public road need a permit from the roads authority for the address: Glasgow City Council in the city, or North Lanarkshire, South Lanarkshire or East Renfrewshire Council outside it. Much of the city's housing is tenement flats with no private driveway, so a road permit is the normal case here rather than the exception. Glasgow City Council asks for at least 28 working days to process a skip permit, and up to three months if a traffic order is needed, so book well ahead and ask the operator whether the permit cost is included in their price.
Choosing a size
Flat clearances and refurbishments produce bulky but light waste, which suits an 8 or 12 yard where there is space. Anything involving old tiling, plaster or a stripped-out bathroom gets heavy fast. For heavy waste like soil or rubble, most suppliers limit you to a smaller skip, often 6 yards or less, because weight rather than volume is the limit. The size guide accounts for both.