Tier 1 or Tier One may refer to: *

Tier 1 capital Tier 1 capital is the core measure of a bank's financial strength from a regulator's point of view.By definition of Bank for International Settlements. It is composed of ''core capital'', which consists primarily of common stock and disclosed res ...

, the core measure of a bank's financial strength * Tier 1 network, category of Internet backbone network * Scaled Composites Tier One, a suborbital human spaceflight program * Tier 1 nations in rugby union *

WTA Tier I tournaments The WTA Tier I tournaments were Women's Tennis Association tennis elite tournaments held from 1990 until the end of the 2008 season. From 1988 to 1990, the different levels of WTA tournaments were referred to by the term 'Category', and there ...

, a series of elite women's tennis tournaments * Tier 1 visas under the

Points-based immigration system (United Kingdom) Immigration policies of the United Kingdom are the areas of modern British policy concerned with the immigration system of the United Kingdom—primarily, who has the right to visit or stay in the UK. British immigration policy is under the purv ...

* Tier 1 – UK Nuclear Site Management & Licensing, nuclear site management licensees * Tier One (military), the highest level of military special forces, as in the highest trained and usually the most secretive. * Tier 1 in the First COVID-19 tier regulations in England, the lowest concern * Tier 1 in the

Second COVID-19 tier regulations in England The Health Protection (Coronavirus, Restrictions) (All Tiers) (England) Regulations 2020 (SI 2020/1374) is an English emergency statutory instrument that replaced the second lockdown regulations from 2 December 2020. As initially made, it bro ...

, the lowest concern * Tier I, a

data center A data center (American English) or data centre (British English)See spelling differences. is a building, a dedicated space within a building, or a group of buildings used to house computer systems and associated components, such as telecommunic ...

standard * Tier I, in United States vehicle emission standards *In a

supply chain In commerce, a supply chain is a network of facilities that procure raw materials, transform them into intermediate goods and then final products to customers through a distribution system. It refers to the network of organizations, people, acti ...

, those suppliers who sell to the manufacturer or main customer directly

See also