two-tier

or two-tiered

[too-teer]

adjective

consisting of two tiers, floors, levels, or the like: a two-tier wedding cake.
consisting of two separate price structures, sets of regulations, etc.: a two-tier fare system for subways and buses.

Origin of two-tier

First recorded in 1970–75

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for two-tier

Contemporary Examples of two-tier

A two-tier system has been proposed, essentially creating a fast lane and a slow lane.
Porn Fights For Your Right to Surf: Pornhub, YouPorn, and Redtube Lead Charge For Net Neutrality
Aurora Snow
September 13, 2014
What this does suggest is that California is headed for two-tier service on the Exchanges.
Model Health Insurer Has Some of the Highest Rates on the California Exchanges
Megan McArdle
June 14, 2013

Historical Examples of two-tier

The term “dinner-wagon,” originally a movable table to hold dishes, is now used of a two-tier sideboard.
Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5
Various

British Dictionary definitions for two-tier

two-tier

adjective

involving or comprising two levels of structure, policy, etc

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012