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  2. Category:EPA Tier 4-compliant locomotives of the United ...

    en.wikipedia.org/wiki/Category:EPA_Tier_4...

    EPA Tier 4-compliant locomotives of the United States. The following is a list of diesel-electric locomotives that meet or exceed EPA Tier 4 locomotive emissions regulations.

  3. Fact sheet - Wikipedia

    en.wikipedia.org/wiki/Fact_sheet

    Fact sheet. A factsheet or fact sheet, also called fact file, is a single-page document containing essential information about a product, substance, service or other topic. Factsheets are frequently used to provide information to an end user, consumer or member of the public in concise, simple language. They generally contain key safety points ...

  4. Northrop Grumman RQ-4 Global Hawk - Wikipedia

    en.wikipedia.org/wiki/Northrop_Grumman_RQ-4...

    The Northrop Grumman RQ-4 Global Hawk is a high-altitude, remotely-piloted surveillance aircraft introduced in 2001. It was initially designed by Ryan Aeronautical (now part of Northrop Grumman ), and known as Tier II+ during development.

  5. GE Evolution Series - Wikipedia

    en.wikipedia.org/wiki/GE_Evolution_Series

    These units are Tier 4 credit units. In 2024, BNSF has bought 25 more ES44ACH locomotives, which are numbered from 3307-3331. These locomotives weigh 436,320 lbs. ES44C4 (2009–2020) BNSF ES44C4 No. 8013. The ES44C4 (Evolution Series, 4,400 hp, C to denote 3 axles per truck, 4 traction motors) was introduced in 2009. While similar to the ...

  6. Sustainability Accounting Standards Board - Wikipedia

    en.wikipedia.org/wiki/Sustainability_Accounting...

    The Sustainability Accounting Standards Board (SASB) is a non-profit organization, founded in 2011 by Jean Rogers to develop sustainability accounting standards. Investors, lenders, insurance underwriters, and other providers of financial capital are increasingly attuned to the impact of environmental, social, and governance (ESG) factors on the financial performance of companies, driving the ...

  7. 82nd Aerial Targets Squadron - Wikipedia

    en.wikipedia.org/wiki/82nd_Aerial_Targets_Squadron

    The 82nd Aerial Targets Squadron is a United States Air Force unit. It is assigned to the 53rd Weapons Evaluation Group and stationed at Tyndall Air Force Base, Florida. The squadron was first activated as the 82nd Pursuit Squadron in 1942. Flying Lockheed P-38 Lightnings, the squadron saw combat as the 82nd Fighter Squadron during World War II ...

  8. Data centre tiers - Wikipedia

    en.wikipedia.org/wiki/Data_centre_tiers

    The standard data center tiers are: [1] Tier I: no redundancy. Tier II: partial N+1 redundancy. Tier III: full N+1 redundancy of all systems, including power supply and cooling distribution paths. Tier IV: as Tier III, but with 2N+1 redundancy of all systems. A Tier III system is intended to operate at Tier II resiliency even when under ...

  9. National Special Security Event - Wikipedia

    en.wikipedia.org/wiki/National_Special_Security...

    A National Special Security Event ( NSSE) is an event of national or international significance deemed by the United States Department of Homeland Security (DHS) to be a potential target for terrorism or other criminal activity. These events have included summits of world leaders, meetings of international organizations, presidential nominating ...

  10. Tier 4 - Wikipedia

    en.wikipedia.org/wiki/Tier_4

    Tier 4. Tier 4 or Tier four may refer to: Tier 4 COVID restrictions in England under The Health Protection (Coronavirus, Restrictions) (All Tiers) (England) Regulations 2020, the highest level. Level 4 COVID restrictions, in COVID-19 pandemic in Scotland. Tier-4 COVID restrictions, in COVID-19 pandemic in Wales. Tier IV, a data center standard.

  11. Tier-scalable reconnaissance - Wikipedia

    en.wikipedia.org/wiki/Tier-Scalable_Reconnaissance

    Tier 1: Spaceborne orbiters, which guide deployment and control of. Tier 2: Airborne balloons or blimps, which in turn deploy and control. Tier 3: Surface-based buoys, and sensors, which in turn deploy and control. Tier 4: Submersibles and sensors.