6. Requiring a marking on a primary or secondary packaging that is not visible outside the package is not a new concept but is similar to the requirements for marking of EXCEPTED PACKAGES of radioactive material detailed in the Paragraph 2.7.2.4.1.4 of the Model Regulations.
6. L &apos; exigence d &apos; un marquage sur un emballage primaire ou secondaire invisible de l &apos; extérieur n &apos; a rien de nouveau mais s &apos; apparente aux prescriptions concernant le marquage de COLIS EXCEPTĖS de matières radioactives, décrites au paragraphe 2.7.2.4.1.4 du Règlement type.