Any bank below the "Large Bank" threshold of $1.098 billion is not required to file an annual CRA report, although we encourage all our clients to voluntarily do so because (1) it preserves your elective to be examined under the Large Bank examination standards and (2) it is impossible to monitor and manage your CRA performance if you don't collect the information. Is there anyone who wants to be held accountable for performance about which they have no information? - but that is exactly what many CRA officers are expected to do if they are not collecting their CRA information.
When you file your information you complete (1) a "record" (sometimes called a "panel") that contains information about your institution, such as name, RID, etc., (2) a record that summarizes (aggregates) your small business lending activity, (3) a record that summarizes your small farm lending activity, (4) a record that summarizes your community development lending and (5) a record that summarizes how you delineate your assessment area(s). All details pertaining to your small business and small farm lending are maintained (but not reported) in the "micro-data" record if you are using the FFIEC CRA software (and most commercial CRA reporting software).
When examiners arrive for your CRA PE they will examine the micro-data file. You will be expected to have scrubbed your data to assure its reliability. Otherwise, examiners will develop a sample of your lending and that sample will be the basis for rating your performance (this is another reason to collect, scrub and monitor your data - otherwise your rating will be based on a sample that may or may not accurately reflect your true performance).
On the GeoDataVision website there is a free recorded webinar that teaches you how to prepare for an impending CRA exam. Also, there is a CRA Exam Checklist in pdf document format that you can download.
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CRA Exam Preparation, CRA Performance Evaluations, Key Performance Benchmarks, & maps