Biopharmaceutical Landscape -- Regulatory Pathways Impacting Biopharmaceuticals -- Differences in CMC Regulatory Compliance: Biopharmaceuticals Versus Chemical Drugs -- Risk Management of the Minimum CMC Regulatory Compliance Continuum -- Ever-Present Threat of Adventitious Agent Contamination -- Starting Materials for Manufacturing the Biopharmaceutical Drug Substance -- Upstream Production of the Biopharmaceutical Drug Substance -- Downstream Purification of the Biopharmaceutical Drug Substance -- Manufacturing the Biopharmaceutical Drug Product -- Complex Process-Related Impurity Profiles -- Seemingly Endless Biomolecular Structural Variants -- Indispensable Potency (Biological Activity) -- Biopharmaceutical Critical Quality Attributes -- The Art of Setting Biopharmaceutical Specifications - Release and Shelf-Life -- The Challenge of Demonstrating Biopharmaceutical Product Comparability -- Strategic CMC-Focused Interactions with Regulatory Authorities.