The paper analyzes methods for assessing professional risk, emphasizing that the primary method is job certification. Job certification establishes the compliance of the workplace with regulatory characteristics for specific risk factors in the production environment. The analysis reveals that the existing methodology for job certification does not provide insights into changes in the parameters of hazardous and harmful factors in the production environment, and consequently, changes in working conditions between planned certifications. The study advocates for a comprehensive assessment of the collective impact of all factors in the production environment and work processes on the human body. This is achieved through hygienic risk factor assessment. The paper highlights the appropriateness of quantitatively assessing working conditions in points, considering the simultaneous influence of multiple hazardous factors. A procedure for point-based assessment of working conditions is proposed, and the applicability of Haber's Law to determine the cumulative dose of a harmful factor in the body is demonstrated.