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EPD meaning

Published by a LexisNexis Energy expert
What does EPD mean?
An electronic personal dosimeter (EPD) is a wearable, active device used in radiation protection practice to measure, display and alarm on an individual’s exposure to ionising radiation in real time. In UK and Irish practice the term is descriptive; legislation generally refers to personal dosemeters and dosimetry rather than specifically to “EPDs” (for example, the Ionising Radiations Regulations 2017 in Great Britain and their Northern Ireland equivalent, and Irish regulations implementing the Euratom Basic Safety Standards). EPDs are typically issued to workers entering controlled or supervised areas (including classified persons) in nuclear, medical, research and industrial radiography settings. They support ALARP and local rules by enabling immediate control of dose and dose rate, access control, and entry/exit checks. Unless integrated with an approved/recognised dosimetry service, EPD data is usually for operational control and may not constitute the legal dose record; statutory dose assessment and record‑keeping must be undertaken by an approved/recognised service. Usage and regulatory expectations are broadly consistent across England and Wales, Scotland, Northern Ireland and Ireland, though the identity of regulators and approval frameworks differ. Practitioners should confirm whether their EPD system is approved for statutory dosimetry or is supplementary to passive dosemeters.
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View the related Practice Notes about EPD

PRACTICE NOTES
UK-US Economic Prosperity Deal: non-binding general terms, interim tariff and quota impacts, non-tariff measures, digital trade and economic security - guidance for UK lawyers under current US tariffs

This Practice Note sets out guidance on the newly unveiled United Kingdom-United States Economic Prosperity Deal (UK-US EPD). It therefore explains the legal implications of the UK-US EPD, considers how it interacts with existing US tariff measures, and outlines the broad parameters for negotiating the ultimate UK-US EPD as these concern the principal facets of trade between the UK and the US. Introduction Since entering office in 2025, President Trump has brought in substantial duties on goods arriving in the US. He began with a 10% levy on all Chinese products, later lifting it stepwise until it hit 145%. He also raised tariffs on specified items entering the US from any country. In March 2025, a 25% import charge on steel and aluminium came into force. Similarly, from April 2025, every imported vehicle was subject to a 25% duty. In early April a baseline tariff of 10% likewise applied to imports of virtually all products from almost all nations. Soon after, President Trump unveiled so-called ‘reciprocal tariffs’ targeting...

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PRACTICE NOTES
UK–US Economic Prosperity Deal: US implementation of general terms—vehicle tariff-rate quota, aerospace tariff exemptions, and prospective steel and aluminium TRQs

This Practice Note sets out practical guidance on the US’s initial measures to give effect to the broad terms of the United Kingdom–United States Economic Prosperity Deal (UK–US EPD). It therefore outlines how amendments to tariffs affecting UK vehicles, aluminium and steel goods, and the aerospace sector are being implemented in practice, at this initial stage. Introduction Since President Trump assumed office in 2025, a wide range of tariffs has been introduced by the administration. In response to these duties, several countries have sought to negotiate bilateral trade arrangements aimed at lifting or lowering such charges. On 8 May 2025, the UK and the US announced agreement to conclude the UK–US EPD. As at 8 May 2025, however, the parties had agreed only the general terms of the UK–US EPD. Those overarching provisions would guide the finalisation of negotiations on the UK–US EPD and permit the early implementation of certain elements. For guidance on the general terms, see Practice Note: General terms for the UK–US Economic Prosperity Deal....

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