# Preparation and planning considerations for decontamination and decommissioning

- Institution: CERN
- Speaker: joanne cousins
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3025522)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

This session aims to deliver a concise overview of the early-stage considerations of projects and pre operations undertaken to complete the evaluation of a contaminated building. This will comprise of, selecting an approach, surveying, evaluation, minimising spread of contamination and waste handling activities within a restricted area, drawing on the principles of COSHH & ALARP. The content outlines the three stage protected area methodology, initial contamination assessment, evidence capture, and controlled waste hand back and support throughout by reassurance monitoring and mandatory RPE and PPE controls. It also emphasises key risk control mechanisms, including hold points and critical operational protocols.

It should be noted that part of this must include recognition of competent personnel, the importance of contamination control discipline, and the need for accurate record keeping in maintaining operational integrity. Overall methodology must provide a clear, structured, and visually supported overview of the operation, safety, and compliance framework governing restricted area work, enabling informed decision making and promoting best practice. The session also may offer an opportunity to discuss similarities and differences in approach with the audience.

00:00:00 Slide 1

00:01:47 Slide 2

00:02:20 Slide 3

00:02:59 Slide 4

00:03:59 Slide 5

00:05:27 Slide 6

00:06:27 Slide 7

00:07:20 Slide 8

00:07:47 Slide 9

00:08:10 Slide 10

00:09:17 Slide 11

00:10:34 Slide 12

00:10:58 Slide 13

00:11:43 Slide 14

00:12:12 Slide 15

00:13:12 Slide 16

00:14:41 Slide 17

00:15:21 Slide 18

00:15:38 Slide 19

00:16:12 Slide 20

00:16:59 Slide 21

## Lectures

1. [Preparation and planning considerations for decontamination and decommissioning](https://invisiblenetwork.ai/learn/cern/3025522/03663b76e0f8), 20 min (CERN's player)