Hulin Forms the 6 company 2nd battalions by breaking up the four companies and enlarging them with velites, 45 grenadiers and 75 velites per company. Velites not taken into the 2nd battalions were formed into a marche/or provisional battalion.
The first battalions are left in tact.
First battlaion grenadiers and chassuers formed the first provisional guard regiment, the 2nd battalions the 2nd provisional regiment of the guard and the velites the 3rd provisional regiment. This breaking up of the velites became enshrined in the 15th April 1806 decree, so at austerlitz the guard was formed into it seems these provisional regiments.