Specific regulations or requirements related to chargeable and dimensional weight calculation in certain transportation modes: Air Transportation: The International Air Transport Association (IATA) provides guidelines for chargeable and dimensional weight calculation in air freight. Sea Transportation: The International Maritime Organization (IMO) sets regulations for chargeable and dimensional weight calculation in sea freight. Road and Rail Transportation: There may be carrier-specific regulations or contractual requirements for chargeable and dimensional weight calculation, but there are no specific industry-wide standards.