These are two separate programs with different eligibility criteria. However, some businesses may be eligible to apply for both simultaneously.
If an organization or business is eligible for both the 75% Canada Emergency Wage Subsidy (CEWS) and the 10% Small Business Wage Subsidy (SBWS), the amount paid under the 75% CEWS will generally be reduced by the amount paid under the 10% SBWS in respect of remuneration paid in the same period.
For organizations that qualify, the 10% SBWS can be accessed as soon as they are required to make payroll remittances for the pay period that includes March 18, 2020. For many businesses, this will be April 15, 2020. As there is no application period, this will provide faster cash relief rather than waiting for the 75% CEWS payments to be received from the CRA, which will likely not be before mid-May.
For further details on both programs, please see the following links: