Only registered voters in the State of Maryland who are affiliated with the Republican Party shall be eligible to vote in the Republican Primary. [Maryland Republican Party Resolution Delegates & Alternates Elected to 2016 Republican National Convention. Resolution 2.]

Tuesday 26 April 2016 (presumably): Maryland Primary. Hours 7:00a-8:00p EDT (1100-0000 UTC). Delegate Selection: Winner-Take-All (district and statewide) Primary. Voter Eligibility: Closed Primary.

Primary
Source: Maryland State Board of Elections.
Status: Official. Retrieved: Thursday 9 June 2016.
Included in Nationwide vote.

Tuesday 26 April 2016 (presumably): All 38 of Maryland's delegates to the Republican National Convention are allocated to presidential contenders in today's Maryland Presidential Primary. [Resolutions 2., 3., and 4.]

• 24 district delegates are to be allocated to presidential contenders based on the primary results in each of the 8 congressional districts: each congressional district is assigned 3 National Convention delegates and the presidential contender receiving the greatest number of votes in that district will receive all 3 of that district's National Convention delegates. The National Convention District delegates are directly elected on the primary ballot. Each voter chooses up to 3 delegates and the 3 highest vote getters are elected.
• 14 at-large delegates (10 base at-large delegates plus 1 bonus delegates plus 3 RNC delegates) are to be allocated to the presidential contender receiving the greatest number of votes in the primary statewide.

Primary
Source: Maryland State Board of Elections.
Status: Official. Retrieved: Thursday 9 June 2016.

The delegates are bound for the first 2 ballots. Delegates are no longer bound if the candidate either releases the delegates or receives less than 35% of the vote at the National Convention. [Resolution 4.]

Saturday 14 May 2016 (presumably): Spring Convention. The Spring Convention elects 11 At-Large National Convention according to the results of the primary. Each participant chooses up to 11 delegates and the 11 highest vote getters are elected.

HB0396, introduced on 6 February 2015 by Delegate Frank S. Turner (Democratic) and SB0204, introduced on 2 February 2015 by Senator Joan Carter Conway (Democratic), would each move the Presidential Primary from the 1st Tuesday in April to the 2nd 4th Tuesday in April. SB 204 was signed by Governor Larry Hogan (Republican) on 12 May 2015.