Filled-out Conflict of Interest Form. 2 Color Photos of the Property.Frequently Asked Questions (FAQ'S) about Allegheny County property assessments and property tax appeals. Common Level Ratio (CLR) Real Estate Valuation Factors. A look at the common level ratio and the role it plays in property assessments in Pennsylvania and Allegheny County. The State Tax Equalization Board (STEB) was established to compensate for the lack of assessment uniformity statewide in distributing school subsidies. This Article V includes specific standards for the design of subdivisions and land developments and requirements for improvements. 10 votes, 10 comments. A friend of mine sent me this formula sheet for AS and A Level business, so I decided to help yall out too. These market values are used in a legislative formula that determines the distribution of the state subsidies to each school district.