[7] However, under the Italian MoD’s Multi-Year Defence Planning Document (Documento Programmatico Pluriennale della Difesa, DPP) for the 2023-2025 timeframe, a fourth ship was added to the program.

[8] The French Navy through OCCAR ordered three modified ships of the class to replace its Durance-class tankers to be delivered in 2023, 2025 and 2027.

[12][13] The French BRF ships are 1 metre (3 ft 3 in) longer at 194 m (636 ft 6 in) and 31,000 tons full load displacement compared to 27,200 tons, reflecting the French fleet's greater need for aviation fuel.

[15] Vulcano is designed as a support ship able to supply a large naval squadron at sea.

The lead ship of the French Navy's Jacques Chevallier sub-class began sea trials in December 2022[17] and was commissioned in November 2024.