The Basic Rule
Rule 803(6) – Records of Regularly Conducted Activity
A memorandum, report, record, or data compilation, in any form, of acts, events, conditions, opinions, or diagnoses, made at or near the time by, or from information transmitted by, a person with knowledge, if
(i) kept in the course of a regularly conducted business activity and
(ii) it was the regular practice of that business activity to make the memorandum, report, record, or data compilation,