You have to sign up for a CM/ECF (Case Management/Electronic Case Filing) account on the PACER website. My court requires you to undergo CM/ECF training before they will assign you an account, but other courts may be more lax in that regard.
However, as I read more about CM/ECF, I found that it may only be available to attorneys (since the PACER CM/ECF website says "There are a number of significant benefits and features: ... Courts can allow registered attorneys to file documents 24 hours a day, 7 days a week.").
Having a full account is very handy since you can then file documents electronically, but it is limiting since once you have a CM/ECF account, you are no longer allowed to file paper documents and you have
to file electronically (at least in many jurisdictions, including mine). Also, once you have an account, other people are no longer required to send you a hard copy of what they file since you are then required to get your copies of all documents by email.
Here's some more info about CM/ECF:http://www.pacer.gov/psc/efaq.html#CMECF
If the court won't let you have a CM/ECF account since you are not an attorney, you should continue to get everything that is filed by mail.
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