This Ministerial Order comes into effect as of the day of promulgation;  provided, however, that the provisions revising the row of "Pressure Cookers for  Home Use" (limited to those with an internal volume of 10 liters or less, and  designed to be used with a gauge pressure of 0.1 kilogram or more per square  centimeters) in Appended Table 1 and the provisions revising Appended Table 6  come into effect as of the day on which one month has elapsed from the day of  promulgation.  この省令は、昭和五十五年三月一日から施行する。 This Ministerial Order comes into effect as of March 1, 1980.  この省令は、昭和五十七年三月一日から施行する。ただし、次の各号に掲げる規定は、 当該各号に掲げる日から施行する。 This Ministerial Order comes into effect as of March 1, 1982; provided, however,  that the provisions listed in the following items come into effect as of the days  listed respectively in those items:  一 別表第一及び別表第六中金属製バット（野球用又はソフトボール用のものに限 る。）の項の改正規定並びに別表第一及び別表第六中登山用ロープ（身体確保用の ものに限る。）の項の改正規定 昭和五十六年九月一日 (i) the provisions revising the row of "Metal Bats" (limited to those used for  baseball or softball) in Appended Tables 1 and 6, and the provisions revising  the row of "Mountain Climbing Ropes" (limited to those used for supporting  one's body) in Appended Tables 1 and 6: September 1, 1981; and  二 別表第一及び別表第六中ローラスケート（前部及び後部にそれぞれ二個の車輪を 並列に取り付けたものに限るものとし、くつが装着される部分の最大の長さが十八 センチメートル未満のもので車輪にベアリングを用いていないものを除く。）の項 の改正規定並びに別表第七の改正規定 昭和五十六年十二月一日 (ii) the provisions revising the row of "Roller Skates" (limited to those that  have two wheels each attached at the fore and at the back of the skate in  parallel, and excluding those where the maximum length of the part where a  shoe will be strapped is less than 18 centimeters and that uses no bearing in  the wheels) in Appended Tables 1 and 6, and the provisions revising  Appended Table 7: December 1, 1981.  29  附 則 〔昭和五十六年六月一日通商産業省令第三十二号〕 Supplementary Provisions [Order of the Ministry of International Trade  and Industry No. 32 of June 1, 1981]  附 則 〔昭和五十四年十二月七日通商産業省令第百十三号〕 Supplementary Provisions [Order of the Ministry of International Trade  and Industry No. 113 of December 7, 1979] 