Abstract This project is sponsored by the Ministry of Defence (MOD), and part of this organisation is Defence Standardization (DStan) who are currently working on rationalizing the number of Defence Standards in their portfolio and increase interoperability with other nations by incorporating more civilian standards of NATO STANAGs. The purpose of this project was to compare two equivalent standards, one being a UK Defence Standard and the other being a NATO STANAG. Specifically, these standards relate to the fording and flotation of military vehicles. Currently, the UK is actively using the defence standard in practice, this report will compare the technical requirements of both standards and will conclude whether the defence standard can be replaced with the NATO STANAG, the defence standard should remain in use, or whether the standards can incorporate certain features that are unique to that standard within the other. The methodology used for this project was to split the standards into sections, since they have a similar layout, and conduct a gap analysis for each of them to determine the key differences and what standard is superior in that area or if they are the same. It was concluded that STANAG 2805 would not be a suitable replacement to Def Stan 00-006 because there were too many missing features in the STANAG that are of value to the UK within the defence standard such as safety and operational requirements, therefore it could be detrimental to the UK to remove this standard from their portfolio.