FY24 Financial Guidance Update

Important Disclaimers Non-GAAP Financial Measures This presentation may include the following non-GAAP financial measures: "Adjusted EBITDA," "Adjusted EBITDA Margin," "Adjusted Net Income," "Adjusted Diluted Earnings per Share," "Free Cash Flow" and "Adjusted Free Cash Flow." Adjusted EBITDA is defined as net income or loss prior to discontinued operations income or loss, interest income, interest expense including the component of lease expense (which is presented as a single operating expense in selling, general and administrative expenses in our GAAP financial statements) that represents interest expense on lease liabilities, income taxes, depreciation and amortization including the component of lease expense (which is presented as a single operating expense in selling, general and administrative expenses in our GAAP financial statements) that represents amortization charges on right-to-use lease assets, and disposals, as adjusted to add back certain charges that we may record each year, such as stock-compensation expense, as well as non-recurring charges such as (i) significant product design changes; (ii) transaction related costs; (iii) discrete expenses related to major cost cutting initiatives; or (iv) costs directly attributed to the COVID-19 pandemic (3). We believe these expenses are not considered an indicator of ongoing company performance. We define Adjusted EBITDA margin as Adjusted EBITDA as a percentage of net sales. Adjusted Net Income is net income or loss as adjusted to add back certain costs as mentioned above. Adjusted Diluted Earnings per Share represents Adjusted Net Income or loss available to common stockholders divided by diluted weighted average common shares outstanding (as if we had GAAP net income during the respective period). Adjusted Net Income and Adjusted Diluted Earnings per Share are calculated net of taxes. Free cash flow represents net cash provided by/used in operating activities minus cash paid for fixed assets, Adjusted Free Cash Flow represents Free Cash Flow minus cash paid for (i) significant product design changes; (ii) transaction related costs; or (iii) discrete expenses related to major cost cutting initiatives. There are limitations to using non-GAAP measures. Although Blue Bird believes that such measures may enhance an evaluation of Blue Bird's operating performance and cash flows, (i) other companies in Blue Bird's industry may define such measures differently than Blue Bird does and, as a result, they may not be comparable to similarly titled measures used by other companies in Blue Bird's industry and (ii) such measures may exclude certain financial information that some may consider important in evaluating Blue Bird's performance and cash flows. BLUE BIRD 3

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