Colorado 2000B Limited Partnership

1.03,9.01

Notification of late filing of Form 10-Q

8.01,9.01

8.01

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-K

1.01,1.03,2.01,4.01,9.01

Notification of late filing of Form 10-Q

8.01,9.01

1.03,8.01

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-K

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

No description available

Notification of late filing of Form 10-Q

No description available

Notification of late filing of Form 10-K

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-Q

2.01

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-K

Notification of late filing of Form 10-Q

Notification of late filing of Form 10-Q

No description available

No description available

No description available

Changes in Registrant.s Certifying Accountant

Changes in Registrant.s Certifying Accountant

4.02,8.01