Ok first of all what exactly is ASCO and ASCO codes?
To be able to apply for immigration to Australia, you need to have some sort of skills which are required in Australia. The list of all such skills which are in demand in Australia are listed on a Skilled Occupation List, SOL which can be accessed by visiting the URL
If you open the SOL, you will see that there are dozens of professions listed in the SOL. All the professions listed on the SOL are in demand in Australia. Against each profession there is an ASCO code assigned.
The ASCO code of the profession defines the profession and it is the definition of the ASCO which matters while determining the skills of a person. For example I was once contacted by a person who was a high school teacher of Biology. He wanted to apply for immigration by nominating the profession of Biologist. Now according to him he was a biologist but according to the ASCO classification he is a high school teacher and not a biologist.
Similarly in another incident, a pharmacist applied for immigration by nominating the profession of Pharmaceutical sales representative. The person was not aware that according to the ASCO classification, he is a pharmacist and not a Pharmaceutical sales representative.
Hence, it is of utmost importance that before you apply for immigration and nominate a profession, you should be 100% sure that you are nominating the correct profession. Other wise your application will be simply rejected on the basis that you do not have expertise in the nominated profession.
Now the question is how can a person check whether his expertise are in accordance with the classifications of the ASCO codes. While trying to figure out the answer, I finally found an online copy of the complete ASCO codes and the definition of each and every code.
The copy can be accessed at the following weblink
So if you are not sure whether your skills and work experience fall into a particular category then simply visit the URL above and check the classification.