The ACGME requires, for Critical Care Fellowship (under IM), at least 50 bronchoscopies per fellow. Its the only procedures the ACGME actually list a minimum. No numbers on intubations, central lines, A-lines, PA catheters, etc
https://www.acgme.org/acgmeweb/Port...AQ-PIF/142_critical_care_int_med_07132013.pdf
For Pulmonary-Critical Care Fellowship, the ACGME requires a minimum of 100 bronchoscopies. Again, it is the only procedure where the acgme has a minimum defined number.
https://www.acgme.org/acgmeweb/Port..._pulmonary_critical_care_int_med_07132013.pdf
There's no minimum number of bronchoscopies under ACGME guidelines for Anesthesia-Critical Care or Surgical Critical Care
https://www.acgme.org/acgmeweb/Port...ents/045_critical_care_anes_07012014_1-YR.pdf
https://www.acgme.org/acgmeweb/Port.../442_surgical_critical_care_07012014_1-YR.pdf
All other minimum requirements are set by your program. And we all know, people are different - some people may need to do A-lines 30+ times before they feel comfortable, while others feel comfortable doing A-lines after a handful. Same with central lines.
One thing to consider - you may meet your program's criteria for procedures - but your next job (as an attending) may require a certain minimum for privileges at that hospital ... such as 50 EBUS, or 50 endobronchial/transbronchial bx, or 50 chest tubes, or 100 central lines, etc. Basically try to do as much procedures as you can during fellowship, and document each time you do a procedure ... because you never know if that new job 20 years from now will ask that you show proof that you've done 75 chest tubes before giving you privilege to do chest tubes .