 Charges to federal awards for salaries and wages must be based on records that accurately reflect the work performed . These records must : ( i ) Be supported by a system of internal control which provides reasonable assurance that the charges are accurate , allowable , and properly allocated ; [ 2 CFR § 200 @.@ 430 ( i ) ] Documenting time worked on federally funded activities is commonly referred to as Time and Effort Reporting . 
