The transfer window rule changes that could have a big impact on Peterborough United's business

These are the new rules Darren Ferguson will have to watch out for during the transfer window.

Posh are eyeing a host of new recruits this window, but what rules and regulations must they be aware of?

We take a look:

When does the League One transfer window close?

The League transfer window will close at 11pm on January 31.

While previous years have often seen the window shut at earlier times, this year will see a more traditional late finish.

Can teams sign loan players after the League One transfer window closes?

No. Recent changes to loan windows mean that all temporary transfers must be completed by the close of the regular window.

Can Darren Ferguson sign free agents after the League One transfer window closes?

Yes – but on certain conditions.

Another recent rule change, free agents can only be signed after the close of the window if their previous contract expired or was terminated before 11pm on January 31.

Therefore, a player released on February 1 would not be able to permanently sign for a new club until the summer window.

That’s why there is often a number of players who see their contracts paid-up in the final days of the window as they look to secure football elsewhere.

Do deal sheets come into play in the League One transfer window?

Yes, they do. A number of teams utilised this to great effect last year, and sides will be able to employ similar tactics if needed again this term.

Deal sheets can only be requested between 9pm and 11pm, and give teams extra time to get transfers over the line.

Are there any restrictions on how many players clubs can sign in the League One transfer window?

Financial Fair Play rules will affect how much teams can spend on wages, but won’t affect how many players they can bring in.

However, with loan deals likely this month, it’s worth remembering that only five loan players can be named in any matchday squad for a League One fixture.