[2] E2 starts at Magallanes Interchange in Makati as South Luzon Expressway.

It carries Skyway until it reaches Muntinlupa, where it ends as SLEX continues.

Differing in concession holders, its section between Magallanes and Alabang Exit is also known as Skyway At-Grade, while the rest of the section takes the South Luzon Expressway concession branding.

[3] The extent of E2/AH26 on the Skyway is unknown since the Department of Public Works and Highways's ArcGIS app does not show any route designation for the elevated tollway.

Southeast Metro Manila Expressway (SEMME) is an under-construction expressway in Metro Manila and Rizal, connecting Skyway near Arca South to the Batasang Pambansa Complex in Quezon City.