Item 21 - Award a Contract to CliftonLarsonAllen LLP for Professional Auditing Services

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• Perform compliance testing at the entity wide level related to procurement and cash management requirements • Perform testing to validate the status of prior year findings for those programs not selected for audit • Prepare the Schedule of Findings and Questioned Costs • Conduct exit conference with the City's management to review drafts of required reports: o Independent Auditors' Report on Internal Control over financial reporting and on compliance and other matters based on an audit of Financial Statements Performed in accordance with Government Auditing Standards o Independent Auditor's Report on Compliance for Each Major Federal Program, Report on Internal Control Over Compliance, and Report on the Schedule of Expenditures of Federal Awards Required by the Uniform Guidance Throughout the single audit, we will maintain communication through periodic progress meetings with those designated by the City. These meetings will be on a set schedule, but as frequently as the City determines. During these meetings, we will discuss progress impediments and findings as they arise. Approach to be taken in drawing audit samples for purposes of tests of compliance We follow the guidance of AU-C Section 530, Audit Sampling, in using statistical and nonstatistical approach. We use quality control material in all our audit engagements. These forms guide our staff through a logical process of assessing inherent risk, control risk, and combined audit risk, followed by an assessment of appropriate sample size for testing. Because our sample sizes are affected by many variables, a statement about sample sizes cannot be made in absolute terms. However, with regard to sample selection, we will generally utilize representative sampling for internal control and compliance tests, including those related to single audit compliance. Samples will also be used in conjunction with other tests of compliance (e.g., Florida Statutes, Ordinances, etc.). In general terms, sample sizes for compliance and controls testing obtained via our guidance usually fall into categories of 25, 40, or 60 depending on circumstances. Where the population being tested is less than 100 items, we will use the 20%, 30%, or 40% of the population depending on our control risk assessment. We are usually able to cover a substantial portion of the compliance and controls testing with one sample, resulting in a very efficient approach. Sample size and statistical sampling We follow the guidance of AU-C Section 530, Audit Sampling, in using statistical and nonstatistical approach. We use quality control material in all our audit engagements. These AU-C Section 530 — "Audit Sampling" forms guide our staff through a logical process of assessing inherent risk, control risk, and combined audit risk, followed by an assessment of appropriate sample size for testing. Sample sizes will vary depending on the nature of the testing (compliance versus substantive) and the size of the population being sampled. Sampling techniques are utilized in compliance and internal control testing, as well as substantive testing of certain asset and liability account balances. Sample sizes used for internal control testing depend on a number of factors, namely the number of expected or actual control deviations, size of population, and level of control assurance anticipated. Sample sizes can range from 20 to 90 possible selections. City of Santa Ana RFP No. 24-009 Page 37 of 63