The basic idea of Open Access is simple: Make research literature available online without price barriers and without most permission barriers.”
So this journal provides immediate and free access to its content on the principle that making research freely available to all users.
It means that all articles that published in this journals that have undergone peer review and upon acceptance are immediately and permanently free for everyone to read and download.
This journal accepts term and condition of following link for open access policies. https://creativecommons.org/licenses/by-nc-nd/4.0