2003/370/EC: Commission Decision of 21 May 2003 allowing Member States to extend provisional authorisations granted for the new active substances iodosulfuron-methyl-sodium, indoxacarb, S-metolachlor, Spodoptera exigua nuclear polyhedrosis virus, tepraloxydim and dimethenamid-P (Text with EEA relevance) (notified under document number C(2003) 1583)