EPA Boundaries within control program

Hello experts.

In 8.3 (ANSI/ESD S20.20-2021) states that

“…The EPA shall have clearly identifies boundaries”.

So, from this perspective, should those boundaries be necessarily documented (map with EPA areas)? (We do have those clear boundaries with ESD yellow tape defined on the floor, but not a map in our procedure necessarily, because our factory is constantly changing due our NPI environment.).

From what I read, and in my understanding, there’s no need to document this, since is not stated as so.

I need confirmation please,

Thank you.

Santiago,

“Clearly defined boundaries” refers to the factory floor itself. Although it may be a good idea to create a map of the EPAs, it is not required per ANSI/ESD S20.20.

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@AndyN, Also the question was raised based on clause 7.1

“…The ESD control program plan shall identify the areas within the Organization that are a part of the overall ESD control program”

So is it mandatory or what could be something we can do for a constantly changing environment?. Its impossible to have that documented or updated couple of times in a month or two… (anyhow, we always use ESD tape to mark the areas).

Thanks in advance

Santiago,

I believe you could state in the ESD control plan that EPAs are identified by your ESD yellow tape on the floor. If you move things around, as long as you re-tape the new EPAs, you would be fine. In this way you wouldn’t need to specifically map it out.

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