Split and simplify the following sentence while retaining its full meaning: Whereas certain veterinary checks are not carried out on products carried in the luggage of travellers and intended for their consumption , or sent in small consignments addressed to individuals; whereas a maximum weight limit should nevertheless be fixed for products subject to such derogations.
 Simplified version:
Products that are in travelers' luggage and are intended for personal consumption and products that are sent in small quantities to private individuals are exempt from certain veterinary checks . However , a maximum weight should be set for consignments of products covered by these exemptions .