or "NOT PROTECTIVELY MARKED" may be used in UK Government documents to indicate positively that a protective marking is not needed. Documents classified under the Protective Marking Scheme still exist and need correct handling. After 100 years all the classifications will have run out but the procedures may still be of interest to historians. Handling Access to protectively marked material is defined according to a vetting level which the individual has achieved. Vetting is intended to assure the department that the individual has not been involved in espionage, terrorism, sabotage or actions intended to overthrow or undermine Parliamentary democracy by political, industrial or violent means. It also assures the department that the individual has not been a member of, or associated with, any organisation which has advocated such activities or has demonstrated a lack of reliability through dishonesty, lack of integrity or behaviour. Finally, the process assures the department that the individual will not be subject to pressure or improper influence through past behaviour or personal circumstances. Protectively marked material must be accounted for in a manner appropriate to its classification level and disposal must be in accordance with the SPF. The act of destruction or disposal is included in the accounting process. Descriptors Protectively marked material may also be marked with a descriptor, or privacy marking, which identifies sensitivities around distribution and handling. Examples of descriptors include, but are not restricted to: Budget Commercial Honours Management Medical Personal Policy Staff Visits (domestic or foreign royalty and ministers) Nationality caveat Protectively marked material may bear a nationality caveat, a descriptor defining which nationality groups it may be released to. By default material in the UK is not caveated by nationality, the classification being sufficient protection. Examples of nationality caveats include, but are not limited to: UK EYES ONLY CANUKUS EYES ONLY: Canadian, UK or US citizens. AUSCANNZUKUS: Australia, New Zealand, Canada, UK and USA (the UKUSA Community, also known as the "Five-Eyes"). BURNING BUSH: Quadripartite discussions (between the US, UK, FRG and France). in particular the restricted format of “Heads of Government Representatives” initiated by Mr Brzezinski in January 1980. Codewords Dissemination of already protectively marked material may be further limited only to those with a legitimate need to know using compartmentalisation by use of codewords. Examples of compartmented material would include information about nuclear warheads, fusion, and naval nuclear propulsion. In some cases, the existence of a codeworded compartment