More than 40 percent of the replacement referees hired by the NFL to stand in for the locked-out officials have not worked above the college Division I-AA level, and the group of replacements includes few from the major college conferences.

According to a list of replacement officials obtained by ESPN.com, at least 52 of the replacements have not regularly worked major college contests but will make the jump to the NFL for this weekend and likely beyond.

There are 11 officials from the Pacific-10 who will work games this weekend, seven from the Big East and three from the MAC. Outside of those three conferences, however, representation from the major college conferences is indeed sparse.

NFL spokesman Greg Aiello told the Associated Press that the list, released by the NFL Referees Association, is "filled with inaccuracies." He did not elaborate.

Of the eight officials from the SEC who are part of the replacement pool, six are retired and two others are supplemental officials. There are nine replacements referees from the Gateway Conference and six from the Southland Conference, but both are at the Division I-AA level.

At least seven of the replacements are junior college referees. Some of the replacements have worked primarily at the high school level for the past few years.

"Let's face it, you can't take a group this inexperienced and expect them to perform at the same level of efficiency the regular officials do," said Tom Condon, general counsel for the NFL Referees Association. "The game is simply too fast for them."

Conspicuous by their absence in the group of replacements are referees from the NFL Europe League. The springtime league is the NFL's primary forum for training and also evaluating prospective new officials, but there isn't a single European league officials on the list of replacements.

Six of the replacements are from the Arena League, another talent pool from which the NFL selects its referees, and another 17 are from Arena League II. There are also some referees who will work NFL games on Sunday after having officiated a college contest on Saturday afternoon. ACC official Joe Rider, for instance, has the Georgia-Tech Navy game on Saturday and then will work the Baltimore Ravens-Chicago Bears game.

All of the replacement officials have been guaranteed a minimum of four paychecks at $2,000 apiece.

Augmenting the replacements are six NFL supervisors who work in the league office in New York.