介绍性文本1.引用和开始2.解释3.销售限制4.第3（4）条的验证5.通知要求6.执行7.犯罪和处罚8.与出口有关的辩护9.订单各项规定的适用10.食品中色氨酸法规的修订（北爱尔兰）1990签名时间表指定PNU食品中为特定营养目的可添加的物质附表2为特殊医疗目的食品中为特定营养目的可添加的其他物质性检查说明

Introductory Text1.Citation and commencement2.Interpretation3.Restrictions on sale4.Verification of regulation 3(4)5.Notification requirement6.Enforcement7.Offences and penalties8.Defence in relation to exports9.Application of various provisions of the Order10.Amendment of the Tryptophan in Food Regulations (Northern Ireland) 1990SignatureSCHEDULE 1SUBSTANCES WHICH MAY BE ADDED FOR SPECIFIC NUTRITIONAL PURPOSES IN DESIGNATED PNU FOODSSCHEDULE 2ADDITIONAL SUBSTANCES WHICH MAY BE ADDED FOR SPECIFIC NUTRITIONAL PURPOSES IN FOODS FOR SPECIAL MEDICAL PURPOSESExplanatory Note