filing a Chapter 13 in fewer than 4 years

 When a prior Chapter 7 filing resulted in a discharge of debt, a filing of another Chapter 7 within 8 years of the prior Chapter 7 filing would be a bar to receiving a discharge in the new filing. The more recent Chapter 7 filing would not be allowed to proceed towards a discharge in a Chapter 7. Whether you received a ‘discharge’ in the earlier filing is what determines eligibility. It’s the filing date that’s used to determine the time period. Filing date to filing date. 
Filing Chapter 13 after having filed a Chapter 7. When a prior Chapter 7 filing resulted in a discharge of debt, the filing of a Chapter 13 within 4 years of the earlier Chapter 7’s filing would be a bar to receiving a discharge in the Chapter 13 filing. 
NOTE: You will not be prohibited from filing a Chapter 13 in fewer than 4 years… however you will not be entitled to a discharge at the conclusion of the Chapter 13 case. The Chapter 13 filing would still provide the Automatic Stay protection and stop all creditor collection actions during the life of the Chapter 13 Plan. It would not reduce any indebtedness because a discharge will not be granted or issued upon completion of the Chapter 13 Plan payment arrangement due to the prior Chapter 7 discharge being received less than 4 years prior to the Chapter 13 filing according to http://julesjacobs49.edublogs.org/2015/01/04/how-do-massachusetts-folks-fall-into-bankruptcy/.
According to http://ceicom.org/?p=134, Filing Chapter 13 after having filed a Chapter 13. When a prior Chapter 13 filing resulted in a discharge of debt, the filing of another Chapter 13 within 2 years of the date of the Chapter 13 Discharge Order would prevent the discharge of any debt in the second Chapter 13 filing according to http://mikesthoughts.drupalgardens.com/content/were-going-talk-about-chapter-13-bankruptcy-utah.
Filing Chapter 7 after having filed a Chapter 13. When a prior Chapter 13 filing resulted in a discharge of debt, a subsequent filing of a Chapter 7 within 6 years of the earlier Chapter 13’s filing would be a bar to receiving a discharge in the subsequent Chapter 7 filing, unless the Chapter 13 Plan was the petitioners Best Effort, was filed in Good Faith and paid no less than 70% of the allowed non-priority unsecured claims. 
A Credit Counseling Certificate verifying that a U.S. Trustee approved Credit Counseling Agency reviewed your financial affairs before filing bankruptcy is required to be eligible to receive the benefits of a consumer bankruptcy filing. This is one of the processes Congress implemented in its’ efforts to insure bankruptcy would not be used unnecessarily. Congress wanted to implement a system requiring consumers who want to file bankruptcy to first prove they would not be able to handle their debts without the need to resort to filing a Chapter 7 or a Chapter 13 bankruptcy. From that perspective the Credit Counseling Program was born. 
A Certificate provided by a U.S. Trustee approved Credit Counseling Agency confirming they reviewed the debtors’ financial affairs and their analysis led them to believe they would be unable to successfully help the debtor avoid the need for a bankruptcy. The certificate must be dated prior to filing bankruptcy but not more than 6 months prior to filing the Petition.