What are PL 1 resources?

"PL 1 resources" doesn't seem like a standard term in any common field. It could potentially be an abbreviation or a term specific to a particular organization or project.

To help you understand what "PL 1 resources" might refer to, please provide more context. For example:

* Where did you encounter this term? Was it in a document, a conversation, or online?

* What is the topic or subject matter? What was the context of the discussion or document where you saw this term?

With more information, I can help you understand what "PL 1 resources" likely means.