The Naira exchanged at N370 to one dollar on February 22.
Buhari had on Feb. 20 insisted that the government would not devalue the Naira in spite of wide gap between the official and the parallel markets.
Alhaji Aminu Gwadabe, the Acting President of the Association of Bureaux De Change of Nigeria (ABCON), said in Lagos on Tuesday that the body had decided to introduce weekly foreign exchange rate band.
Gwadabe said that this would be used as a guide to all Bureau De Change Operations (BDCs) and members of the public on the prevailing exchange rate across the country.
According to him, this is to forestall exploitation of foreign exchange end-users and also to ensure that they are informed enough to avoid falling victims of exploitation.
The Naira, however, remained at N199.50 to the dollar as the official bank rate.