The Index of Private Tracker Abbreviations is an index that lists the abbreviated names or acronyms of BitTorrent private trackers. For example AOM is the acronym for Art of Misdirection.

wikipedia lists some of them under "Notation in probability and statistics". However, various academic disciplines have their own publication standards also. For example, if you were publishing in the field of psychology then you might be obliged to use the APA abbreviations.

Eliminating medical abbreviations would reduce errors because many abbreviations are very similar and therefore people get confused between them, however, if abbreviations were eliminated it would make it very difficult on medical professionals who would have to write out very lengthy medical terms. That's why many organizations are developing written policies stating which abbreviations should not be used and medical professionals are trained to write legible when using other abbreviations

The abbreviations are PL.

The state abbreviations of (ME) isMAINE