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If the dose to be received is set at 0.25 rem / yr , to be conservative with the factor of 2 , a required thickness of Moon dust ( silicon dioxide ) of 441 g / cm ^ 2 is derived to protect the habitat . Chinese law on the ability of its members to do business in China , including possibly conflicting and confusing requirements for direct ownership and control of NVOCC businesses and separate Chinese incorporation of foreign NVOCCs ; the required maintenance of substantial funds in Chinese banks ( rather than bonding or insurance ) ; provisions governing the filing of rates , waiting periods for rate changes and the confidentiality of service contract rates ( which may subject NVOCCs to requirements inconsistent with recently amended U.S. laws ) ; and the required use of vouchers prepared by Chinese tax authorities to invoice customers in China . It noted that the required use of government-issued photos has triggered unresolved lawsuits in several states , including Georgia , Indiana and Missouri . In shipbuilding , too , both parties have complained over protectionist policies in the form of tax preferences , outright subsidies , and the required use of homeports for major repairs . Why should n't the fact that each of these changes required adoption of legislation , and in each case such legislation was accompanied by adoption of specific consumer protection requirements , be viewed by the Commission as evidence that Congress does not intend the Commission to issue broad exemptions from Section 11 , but prefers instead to craft narrowly-tailored exemptions where special circumstances warrant ? The sole basis for the disallowance was HCFA 's view that the State plan required use of base year patient days rather than projected patient days in the rate calculation . The bipartisan legislation , introduced Thursday by Sen. Tom Daschle , D-S.D ., includes a scheduled required use of ethanol in the nation 's motor fuel supply that gradually increases over the next eight years . Air pollution control requirements that became effective while the Building I site plan was pending before the Town Planning Board required installation of a baghouse . Qualifying experience may be combined on proportionate basis if the requirements stated below include more than one pattern and are distinguished as " either " I , " or " II , " or " III , etc. For example , candidates possessing qualifying experience amounting to 50 % of the required time of Pattern I , and additional experience amounting to 50 % of the required time of Pattern II , may be admitted to an examination as meeting 100 % of the overall experience requirement .