[kccrow]

Originally Posted by DaneMcCloud

I can't seem to find a definitive site for PS rules...

This should help you out, direct from the CBA:

ARTICLE 8
VETERANS WITH LESS THAN THREE ACCRUED SEASONS
Section 1. Accrued Seasons Calculation:
(a) For the purposes of calculating Accrued Seasons under this Agreement, a
player shall receive one Accrued Season for each season during which he was on, or
should have been on, full pay status for a total of six or more regular season games, but
which, irrespective of the player’s pay status, shall not include games for which the player
was on: (i) the Exempt Commissioner Permission List, (ii) the Reserve PUP List as a
result of a nonfootball injury, or (iii) a Club’s Practice Squad.
(b) A player shall not receive an Accrued Season for any League Year in
which the player is under contract to a Club and in which he failed to report to such
Club at least thirty days prior to the first regular season game of that season, or in which
the player thereafter failed to perform his contract services for the Club for a material
period of time unless he demonstrates to the Impartial Arbitrator extreme personal
hardship causing such failure to report or perform, such as severe illness or death in the
family. The determination of the Impartial Arbitrator shall be made within thirty days of
the application by the player, and shall be based upon all information relating to such
hardship submitted by such date. The determination of the Impartial Arbitrator shall be
final and binding upon all parties.

ARTICLE 33
PRACTICE SQUADS
Section 4. Eligibility:
(a) The Practice Squad shall consist of the following players, provided that
they have not served more than two previous seasons on a Practice Squad: (i) players
who do not have an Accrued Season of NFL experience; and (ii) free agent players who
were on the Active List for fewer than nine regular season games during their only Accrued
Season(s). An otherwise eligible player may be a Practice Squad player for a third
season only if the Club by which he is employed that season has at least 53 players on its
Active/Inactive List during the entire period of his employment.
(b) A player shall be deemed to have served on a Practice Squad in a season
if he has passed the club’s physical and been a member of the club’s Practice Squad for
at least three regular season or postseason games during his first two Practice Squad
seasons, and for at least one regular season or postseason game during his third Practice
Squad season. (For purposes of this Section, a bye week counts as a game provided that
the player is not terminated until after the regular season or postseason weekend in question.)