Can I write Song Style in the hard-pen calligraphy exam?

You can't. The grading examination is organized by the Ministry of Culture, and the requirements in different regions are the same. Hard-pen calligraphy can't be written in Song style, but can generally be written in regular script, running script or regular script and official script, with no less than 80 to 150 words. Hard-pen calligraphy score refers to the examination of China's basic skills of hard-pen calligraphy organized by examination institutions.