A company wants to build a data center infrastructure which can provide up to 99.982% uptime availability per year. Which ANSI/TIA-942 data center tier meets the requirement?

Redundant-distribution site infrastructure is not a recognized ANSI/TIA-942 tier name; this phrase does not correspond to any of the four defined tiers in the standard.

Redundant-capacity component site infrastructure describes Tier 2, which delivers only 99.741% availability - significantly below the 99.982% requirement specified in the question.

Tier 3 - Concurrently Maintainable site infrastructure - is specified by ANSI/TIA-942 as providing 99.982% availability (roughly 1.6 hours of downtime per year), achieved through N+1 redundant power and cooling delivery paths that allow planned maintenance to occur without interrupting active IT operations.

Basic site infrastructure is Tier 1, providing only 99.671% availability with no redundant components, making it far short of the 99.982% uptime target.