Welcome to PTRD E-Learning.
In order to be able to access to some content you will need the access passwords that your instructor will give you.
For all PTRD courses you must also use the updated decompression tables. You will then be able to download those tables.
Below you will be able to access the contents in different languages, choose the one that suits you best.
PTRD DECO TABLES
Now, select the language you are interested: