Input Output Norms revised: validity extended and detailed standard input output norms added, amending component import allowances. The Director General amends the Handbook of Procedures (Vol.2) by adding, substituting and correcting Standard Input Output Norms across Chemicals, Engineering, Leather and Textile groups via Annexures A-E; permits component imports on a net to net basis with an accountability clause; introduces product specific provisos (including CIF limits for certain chemicals and formulae to adjust input allowances for compound weight variations); deletes an engineering table and extends the temporary validity of affected norms until 30th September 2000.