What are the weight and height limits for forward-facing and booster modes on the Graco Nautilus 65?

The Graco Nautilus 65 supports forward-facing use for children weighing 22–65 lb (10–30 kg) and 27–49 inches (69–125 cm), and must be at least one year old. Booster use with back supports children 30–100 lb (14–45 kg) at 38–57 inches, while backless booster mode is for children 40–100 lb (18.1–45 kg) at 40–57 inches, and at least 4 years old. (Page 6, Page 44)