Since your enrollment level (full time, 3/4 time, 1/2 time or less) decides eligibility for the quarter, Census Date will affect your grant payment.
If you received aid based on full time enrollment and then dropped credits, any aid given would be changed to match the enrollment level as of Census Date.
Credits added after Census Date cannot be used to increase financial aid eligibility.
If you drop credits (which could then drop your enrollment level), funds may have to be returned to BBCC since you may be considered overpaid.
If you drop credits after Census Date (as long as you don’t drop all credits), you wouldn’t need to return any funds back to BBCC. Your Satisfactory Academic Progress status would be affected by dropping credits though.