The specific Manufacturer ID (QM code or QMID) required for filing federal energy efficiency tax credits and regional utility rebates on qualifying Bosch heating and cooling systems is K3M2. Homeowners and contractors reference this official certification code when submitting tax documents for high-efficiency heat pump installations to ensure compliance with current energy legislation. Because tax incentives and efficiency thresholds update periodically based on AHRI certificate ratings and specific equipment tier matches (such as IDS Premium packages), verifying the active certificate details directly through Bosch's official regulatory documentation portal is always recommended.
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