Six members of Congress have never missed a vote in their careers on Capitol Hill.

Sen. Susan CollinsSusan Margaret CollinsDem rep to launch discharge petition to force net neutrality vote in House Hillicon Valley: Senate votes to save net neutrality | Senate panel breaks with House, says Russia favored Trump in 2016 | Latest from Cambridge Analytica whistleblower | Lawmakers push back on helping Chinese tech giant Overnight Health Care — Sponsored by PCMA — ObamaCare premium wars are back MORE (R-Maine) has cast more than 5,500 consecutive votes since she was sworn into office in 1997. Reps. Justin AmashJustin AmashLawmakers seek to limit US involvement in Yemen's civil war NC Republican pressed on Trump in primary showdown Harassment rules play into race for Speaker MORE (R-Mich.) and Steve WomackStephen (Steve) Allen WomackBudget chairman Womack eyes appropriations switch Leaders warn Republicans against forcing immigration vote CBO projects booming deficits MORE (R-Ark.), who were elected in 2010, have also not missed a vote. The others are Sen. Deb FischerDebra (Deb) Strobel FischerPruitt’s renewable fuel attacks cost him GOP support in Congress Meet the Democratic sleeper candidate gunning for Senate in Nebraska Tariff fight could hit GOP in key Senate states MORE (R-Neb.) and Reps. Derek KilmerDerek Christian KilmerDems urge Trump to reinstate top cyber post Congress to require FEC report on foreign money in elections With bills on the table, Congress must heed the call to fix our national parks MORE (D-Wash.) and David Jolly (R-Fla.).

This Congress, 12 other members have logged perfect attendance records, including Sen. Charles SchumerCharles (Chuck) Ellis SchumerSchumer: GOP efforts to identify FBI informant 'close to crossing a legal line' Patients deserve the 'right to try' How the embassy move widens the partisan divide over Israel MORE (D-N.Y.) and House Majority Whip Kevin McCarthy (R-Calif.).

Rep. Leonard Lance (R-N.J.), who is among the dozen, noted that his state is relatively close to Washington, D.C. But he takes pride in making every roll call, saying when an appointment or meeting conflicts with a vote, “I excuse myself form the office to make sure I am on the floor at the appropriate time.”

For this article, The Hill reviewed roll call data on Congress.gov as well as govtrack.us.

Current members who have never missed a vote

Senate

Susan Collins (R-Maine) (started serving in 1997)

Deb Fischer (R-Neb.) (started serving in 2013)

House

Justin Amash (R-Mich.) (started serving in 2011)

Derek Kilmer (D-Wash.) (started serving in 2013)

Steve Womack (R-Ark.) (started serving in 2011)

David Jolly (R-Fla.) (started serving in 2014)

Current members who have not missed votes in this Congress

Senate

Susan Collins (R-Maine)

Joe DonnellyJoseph (Joe) Simon DonnellyVoters Dems need aren't impressed by anti-waterboarding showboating Overnight Defense: Senate confirms Haspel as CIA chief | Trump offers Kim 'protections' if he gives up nukes | Dem amendments target Trump military parade Hillicon Valley: Lawmakers target Chinese tech giants | Dems move to save top cyber post | Trump gets a new CIA chief | Ryan delays election security briefing | Twitter CEO meets lawmakers MORE (D-Ind.)

Deb Fischer (R-Neb.)

Chuck GrassleyCharles (Chuck) Ernest GrassleyHow House Republicans scrambled the Russia probe Dem lawmaker spars with own party over prison reform Overnight Energy: Pruitt taps man behind 'lock her up' chant for EPA office | Watchdog to review EPA email policies | Three Republicans join climate caucus MORE (R-Iowa)

Kay HaganKay Ruthven Hagan2020 Dems compete for top campaign operatives Senate GOP rejects Trump’s call to go big on gun legislation Politics is purple in North Carolina MORE (D-N.C.)

Charles Schumer (D-N.Y.)

Ron WydenRonald (Ron) Lee WydenHillicon Valley: Facebook, Google struggle to block terrorist content | Cambridge Analytica declares bankruptcy in US | Company exposed phone location data | Apple starts paying back taxes to Ireland Firm exposes cell phone location data on US customers Overnight Finance: Watchdog weighs probe into handling of Cohen bank records | Immigration fight threatens farm bill | House panel rebukes Trump on ZTE | Trump raises doubts about trade deal with China MORE (D-Ore.)

House

Justin Amash (R-Mich.)

John BarrowJohn Jenkins BarrowOur democracy can’t afford to cut legal aid services from the budget Dem files Ethics complaint on Benghazi panel Barrow thanks staff in farewell speech MORE (D-Ga.)

Henry Cuellar (D-Texas)

Charles Dent (R-Pa.)

David Jolly (R-Fla.) (started serving in 2014)

Derek Kilmer (D-Wash.)

Leonard Lance (R-N.J.)

Billy Long (R-Mo.)

Kevin McCarthy (R-Calif.)

David McKinleyDavid Bennett McKinleyOvernight Health Care: Drug exec apologizes for large opioid shipments | Schumer vows to be 'relentless' in tying GOP to premium hikes | House panel advances VA reform bill Distributor executive apologizes for large opioid shipments The costs of carbon taxes are real — and crippling MORE (R-W.Va.)

Steve Womack (R-Ark.)

 

Vivian Hughbanks contributed.