A building is considered to be "Complete" (and officially added to the CTBUH Tallest Buildings lists) if it fulfills all of the following three criteria:
1) Topped out structurally and architecturally¹
2) Fully-clad²
3) Open for business, or at least partially occupiable
¹ The topping out architecturally of a building implies that ALL structural and finished architectural elements are in place.
² The omission of a small number of cladding panels to allow fixing of a construction hoist while interior fit-out of some building areas is continuing does not affect the status of "fully clad."