Detail of the fresco of the school of Aristotle by Gustav Adolph Spangenberg.
The first day of school is not fixed by any national standard. It is the product of law, custom, climate, and local choice. Before classes begin, both K–12 schools and colleges pass through a season of preparation. Grounds are tended, classrooms cleaned, technology tested, books delivered and schedules finalized. Teachers and professors return before students, using the remaining quiet days to organize lessons, review policies and prepare for another academic year. In both settings, “Back to School” is as much about the institution preparing itself as it is about students arriving.
The differences lie chiefly in scale and rhythm. K–12 schools usually reopen according to district calendars shaped by state law, transportation, meal service and family schedules. The first day is often a community event, with buses returning, parents taking photographs and routines resuming all at once. Colleges and universities, by contrast, stagger the process. Residence halls open over several days, orientation programs precede instruction and research, healthcare and utility operations continue throughout the summer. New students arrive first, followed by returning students, graduate assistants and faculty.
The educational mission also differs. Elementary and secondary schools emphasize continuity, supervision and age-based progression. Colleges balance teaching with research, healthcare, athletics and residential life, making the beginning of the academic year resemble the gradual awakening of a small city. In every case, however, the new school year marks a renewed investment in learning, community and the institutions that sustain both.
The fourth edition of ASHRAE Standard 90.4 was published in late 2025 (superseding the 2022 edition) and it provides leading practice for smaller enterprise level data centers as well as hyperscale campuses.
Key Highlights of the 2025 Edition
Establishes minimum energy efficiency requirements for the design, construction, operation, and maintenance of data centers.
Expanded sustainability scope: Goes beyond pure energy efficiency to explicitly include greenhouse gas emissions, water use, and broader resource impacts.
Maintains the performance-based approach using metrics like the Mechanical Load Component (MLC) and Electrical Loss Component (ELC), with refinements to make requirements more stringent.
Applies primarily to data centers with power density >20 W/ft² and IT loads >10 kW. It references ASHRAE 90.1 for non-data-center elements (envelope, lighting, etc.).
This marks a clear evolution toward decarbonization and resource efficiency, especially important for AI-driven hyperscale data centers.
Recent Developments (2025–2026)
Addendum b to the 2022 edition was approved in September 2025, providing clarifications for phased or modular data center designs.
The 2024 IECC now references ASHRAE 90.4-2022 (Sections 6 and 8) as a compliance path for data centers.
ASHRAE continues to advocate for wider adoption of 90.4 in state and local energy codes.
The Standing Standard Project Committee (SSPC 90.4) remains active with working groups on mechanical, electrical, ESG, and marketing aspects.
Data centers are among the fastest-growing energy consumers globally due to AI, cloud computing, and digital infrastructure. ASHRAE 90.4 was created because traditional building codes do not adequately address their unique high-density, mission-critical nature.
The 2025 edition’s inclusion of emissions and water use reflects increasing industry and regulatory pressure on data center environmental footprints.
This title establishes minimum energy efficiency requirements for data centers; a permanent fixture in all education communities now undergoing a virtual +∞ asymptotic spike in generative intelligence transformation in ℝ³. At the moment this title is stable but can be revised in 30-90 day consultation cycles which will make it the dominant standard compared with IEEE and NFPA titles which move on a 3 to 5 year revision cadence.
ASHRAE 90.4 defines an alternate compliance path, specific to data centers, while the compliance requirements for “non-data center” components are contained in ASHRAE 90.1 . The 90.4 structure also streamlines the ongoing maintenance process as well ensures that Standards 90.1 and 90.4 stay in their respective lanes to avoid any overlap and redundancies relating to the technical and administrative boundaries. Updates to ASHRAE 90.1 will still include the alternate compliance path defined in ASHRAE 90.4. Conversely the 2022 Edition of 90.4-2022 refers to ASHRAE 90.1-2022; cross-referencing one another synchronously
Links to noteworthy coverage from expert agencies on the 2022 revisions:
This title resides on the standing agenda of our Infotech 400 colloquium; hosted several times per year and as close coupled with the annual meetings of ASHRAE International as possible. Technical committees generally meet during these meetings make decisions about the ASHRAE catalog. The next all committee conference will be hostedJanuary 20-24, 2024 in Chicago. As always we encourage education industry facility managers, energy conservation workgroups and sustainability professionals to participate directly in the ASHRAE consensus standard development process. It is one of the better facilities out there.
Proposed Addendum g makes changes to definitions were modified in section 3 and mandatory language in Section 6 to support the regulation of process heat and process ventilation was moved in the section for clarity. Other changes are added based on comments from the first public review including changes to informative notes.
Consultation closes June 4th
Update: February 10, 2023
The most actively managed consensus standard for data center energy supply operating in education communities (and most others) is not published by the IEEE but rather by ASHRAE International — ASHRAE 90.4 Energy Standard for Data Centers (2019). It is not required to be a free access title although anyone may participate in its development. It is copyrighted and ready for purchase but, for our purpose here, we need only examine its scope and purpose. A superceded version of 90.4 is available in the link below:
It is likely that the technical committee charged with updating this standard are already at work preparing an updated version that will supercede the 2019 Edition. CLICK HERE for a listing of Project Committee Interim Meetings.
We maintain many titles from the ASHRAE catalog on the standing agenda of our Mechanical, Energy 200/400, Data and Cloud teleconferences. See our CALENDAR for the next online meeting; open to everyone.
Originally posted Summer 2020.
ASHRAE International has released four new addenda to its energy conservation consensus document ASHRAE 90.4-2016 Energy Standard for Data Centers. This document establishes the minimum energy efficiency requirements of data centers for design and construction, for the creation of a plan for operation and maintenance and for utilization of on-site or off-site renewable energy resources.
It is a relatively new document more fully explained in an article published by ASHRAE in 2016 (Click here). The addenda described briefly:
Addendum a – clarifies existing requirements in Section 6.5 as well as introduce new provisions to encourage heat recovery within data centers.
Addendum b – clarifies existing requirements in Sections 6 and 11 and to provide guidance for taking credit for renewable energy systems.
Addendum d – a response to a Request for Interpretation on the 90.4 consideration of DieselRotary UPS Systems (DRUPS) and the corresponding accounting of these systems in the Electrical Loss Component (ELC). In crafting the IC, the committee also identified several marginal changes to 90.4 definitions and passages in Section 8 that would add further clarity to the issue. This addendum contains the proposed changes for that aim as well as other minor changes to correct spelling or text errors, incorporate the latest ELC values into Section 11, and to refresh information in the Normative Reference.
Addendum e adds language to Section 11 intended to clarify how compliance with Standard 90.4 can be achieved through the use of shared systems.
Comments are due September 6th. Until this deadline you may review the changes and comment upon them by by CLICKING HERE
Education facility managers, energy conservation workgroups and sustainability professionals are encouraged to participate directly in the ASHRAE standard development process. Start at ASHRAE’s public commenting facility:
The ASHRAE catalog is a priority title in our practice. This title appears on the standing agenda of our Infotech sessions. See our CALENDAR for the next online meeting; open to everyone.
Today at 15:00 UTC we will review the latest in best practice literature for air conditioning systems. Note that we have broken out this topic from the standing Mechanical colloquia. Our approach features interoperability and system considerations. Catalogs on the agenda:
— Learfield College Rodeo (@LearfieldRodeo) July 29, 2026
Check out Fever guard Sophie Cunningham having some fun at her kids camp, recreating the “pointing” meme that went viral last week. pic.twitter.com/eCPkzx0IEt
On Friday this group Facetimed me. This is their yearly get together. They tell me that they “are connected for life.” When you commit to something bigger than yourself you don’t just give yourself a better chance to win, the bonds you build are for life. pic.twitter.com/mSc4BECrb3
Sydnee Sinn, Sarah Forsyth, Olivia Millen and Kate Stewart-Barnett run 8:33.40 in the 4x800m relay to break the school record at Penn Relays!🟢⚪ pic.twitter.com/y6VQFJVrMT
— MSU Track & Field/Cross Country (@MSU_TFXC) April 25, 2026
Riley Gaines is a beautiful example of the joy of motherhood.
From championing women’s sports to working out women with her daughter, Margot, she shows how motherhood deepens purpose and fills life with unmatched love.
📣 NSAI is seeking new members for our standards committees
We are establishing new technical committees on Light Gauge Steel, Mass Engineered Timber, and the National Annex for Eurocode 5 (structural fire design).
Once was fun, twice is very nice! UVM Olympian Ben Ogden has done it again, capturing silver in the men’s cross-country team sprint w/teammate Gus Schumacher! This is the first medal for Team USA in this event and makes Ogden the team’s most decorated men’s cross-country skier. https://t.co/0SxTfMnKQI
✅ SCHOOL RECORD
✅ NCAA RECORD (by 8 seconds btw)
✅ 10TH FASTEST 5000M BY AN AMERICAN
✅ 11TH INDOOR 5000M TIME IN THE WORLD
✅ FIRST COLLEGIATE WOMAN TO RUN SUB 14:50 (indoor AND outdoor)
CHASE DOWN❗️ Şilan Ayyildiz finishes 9th individually at the cross country national championship to lead the Ducks to a 3rd place finish. Ayyildiz went from 18th to 9th place over the final K 😮💨 #GoDuckspic.twitter.com/spP7A0UEmo
Yale topped previously undefeated Harvard in the 141st playing of The Game, earning a share of the Ivy League title and the league’s first-ever automatic bid to the NCAA FCS playoffs.
BYU’s Jane Hedengren just beat the defending 5K and 10K national champion by 42 seconds head-to-head at regionals. FORTY-TWO SECONDS! We are witnessing greatness. 🏃♀️ pic.twitter.com/6ELw3anmhL
Led by senior Chad Perrine and junior Luke Skuratowicz, three Hope College men’s cross country runners finished in the Top 30 of the 167-runner field at the Muskegon Community College Jayhawk Invitational on Saturday. Read the meet recap on the Hope Athletics website. #d3xcpic.twitter.com/Dynob8mVrX
Northwest High School junior Cooper Lutkenhaus has run the fastest 800-meter race in the world for any athlete younger than 18! Cooper set the new U18 world best at the USA Track & Field Outdoor Championships by running a time of 1:42.27 to earn silver. pic.twitter.com/5imZ9yZHLN
The U.S. men’s four won gold for the first time at the U23 World Championships. Ryan Martin, Wilson Morton, Sam Sullivan, and Lyle Donovan are victorious in the A Final, winning by 2.25 seconds. pic.twitter.com/2fAtSEwewA
Over the weekend, Anhelina Khmil earned a second place finish at the CEV Nations Cup Final in Portugal as part of the Ukrainian team! pic.twitter.com/2zuEa9wk9c
The bottom of the ground was nothing for Emily Beisel! She moves into the Top 4 of her set by almost two tenths of a second to lock in her place at the Cheyenne Frontier Days Semifinals. pic.twitter.com/1uDeztOlZM
— The Cowboy Channel (@Cowboy_Channel) July 20, 2025
Savannah Sutherland d capped an incredible career at Michigan with her second NCAA title and has been named the 2024-25 Female Michigan Athlete of the Year! 〽️ #LeadersAndBest
— Michigan Track & Field / Cross Country (@UMichTrack) June 23, 2025
𝐀𝐔𝐁𝐔𝐑𝐍 𝐁𝐄𝐈𝐍𝐆 𝐀𝐔𝐁𝐔𝐑𝐍
Our list of Fences Riders of the Year is getting long…
✔️ 2025: Avery Glynn (SEC & NCEA ROTY); Kate Hagerty (SEC Freshman ROTY)
✔️ 7-straight SEC ROTY awards
✔️ 4 of the last 7 NCEA ROTY honors
✔️ 7 SEC Freshman ROTY awards#WarEaglepic.twitter.com/1bRaWk4ytY
Savannah Sutherland sets the Hodges Stadium facility record and for the second straight year she sets the NCAA East First Round record in the 400H! pic.twitter.com/u48jsKv3Zm
— Michigan Track & Field / Cross Country (@UMichTrack) June 1, 2025
Your Duke family is proud of you guys! Dom and Gavin both fared well in the state tournament!! Dom went 2-2, and Gavin went 7-1! Gavin finished 3rd overall in his weight class!! Congratulations to both boys!! @WEVSD_sports@whsladydukes@AndyPeltzpic.twitter.com/5yEMNYkU7Q
Another @MSU_Hockey BIG10 Championship! What an exciting night at Munn Arena for our Spartan players, coaches, students and fans. Go Green!! pic.twitter.com/u9ZWUTeBVc
Every Thursday, coach Brandon runs men’s IM threshold practice and Coach Sarah & I run the women’s IM group. It’s one of those “all hands on deck” type of day. Last night, in the 400 IM the men went 1-2-3-5-10-11 and the women went 2-3-4-5-6-10-17-22. pic.twitter.com/pCfhLWSvoA
What a shot at the buzzer! Michigan State pulls off the win at Maryland, 58-55. #Spartans have won four games in a row, including three straight against ranked opponents.pic.twitter.com/1NMM6xdH46
Great day in the weight room at Weatherford High School! We have football, basketball, girls and boys track programs working hard. We are blessed with the best facilities in the state! pic.twitter.com/gvH85GZmoM
The Revere Varsity Competition Squad traveled to Big Walnut High School today to compete in the OASSA State of Ohio Cheerleading Championships! They finished in fourth place, D3 Non Build Division!!! We are so proud of you ladies! @RevereLocalpic.twitter.com/evF06thfAD
Wow! What an amazing couple of weeks for ‘OE’ Justin Davies. He broke the Welsh indoor 800m record at the Keely Klassic and then went on to become the British champion at the UK Indoor Championships! #uptherose 🌟🏅 pic.twitter.com/fgFq5AOX09
— Sport & PE | King Edward’s School (@KESBathSport) February 24, 2025
My girl shot her first ever perfect 5 bullseyes at her county tournament today
Great job girl! pic.twitter.com/Xhyl1bEK0R
“We’re putting every school receiving taxpayer dollars on notice that if you let men take over women’s sports teams or invade your locker rooms, you will be investigated for violations of Title IX and risk your federal funding.” –President Donald J. Trump 🇺🇸 pic.twitter.com/MUd6FAetWr
Remember when it was so cold the rivers and lakes iced over? Our college wild swimmers certainly do – they took the plunge (without wetsuit insulation) and lived to report back! 🥶 pic.twitter.com/CKyLK0ySMu
“We’re feeling confident in our performance so far. We’re being challenged, but so far have managed to stay sharp.” – Catherine Clifford, third
This quote sums up the Canadian women’s performance thus far at the World University Games, as they remain undefeated after two wins on… pic.twitter.com/jetQK1TtbH
“Rowing is more poetry than sport.” — George Pocock (‘Boys in the Boat’ 2024), a British-born boat builder, rowing coach, and influential figure in American rowing, best known for his craftsmanship of racing shells and his philosophical approach to the sport.
On Friday this group Facetimed me. This is their yearly get together. They tell me that they “are connected for life.” When you commit to something bigger than yourself you don’t just give yourself a better chance to win, the bonds you build are for life. pic.twitter.com/mSc4BECrb3
I can confirm that @GreenPlusAnE spent part of his wedding reception discussing entitlement reform. And the new Mrs. Greene is possibly the most elegant Tocqueville scholar in existence. https://t.co/XRfnxJ027G
In non soccer, non portal, non athletic news, our family just grew by one 😀 we gained a future son in law!!! So happy for Madison and Dylan. #weddingplanspic.twitter.com/3DNx0tNr5D
Congrats to my son for graduating with Honors from Eastern Michigan – don’t blink time flies – so so proud of what he’s accomplished & love him to pieces 💙🎉🥳 pic.twitter.com/qAj2ndRVwA
We need a reality dating show called “Average SEC Couples” that’s just 15 Average Joe’s from the South wooing 15 gorgeous women with generational wealth. pic.twitter.com/hhNGYUPw3S
Since I’m making happy announcements, Anne and I are expecting our first grandchild (a grandson we’re told) in February. We’re very proud of and happy for our oldest son Aedan and his wife Addy. Thanks be to God! pic.twitter.com/3xFXGYaes0
💙Last middle school dance💙
Time is flying, but I’ve loved every moment of this phase — shopping for his unique style, the cologne hunts, the late-night talks, and watching him chase what he loves. Keep being authentically you, GT!💥 pic.twitter.com/glH8AHyid4
One week postpartum with the sweetest baby ever. I am blessed beyond measure to have had my 5th successful home birth and a very smooth recovery. God is so good! pic.twitter.com/bWBqAtOUkj
A South African man who recently picked up an abandoned baby in Mpumalanga suburb of Emalahleni is now applying for court permission to adopt the boy and get him a birth certificate
Ten years after our wedding, our triplets have finally arrived… Thank you to everyone who sent us congratulations. These are our most precious treasures. #fblifestylepic.twitter.com/AXKOj7vL7Q
The body of 8-year-old Mystic camper Virginia Hollis was found along the Guadalupe River earlier this week, more than a week after the July 4 floods in Texas.
Yesterday, this angel’s favorite horse followed her casket through the streets to bid her farewell. 😭 pic.twitter.com/T8f8O6n4q3
After 15 years of marriage, the first child is actually twins! 🥳Maybe no one will say it, but we want to share this joy anyway. 🌹 pic.twitter.com/T60zPJZ0tT
He was with me almost every day for 12 years. The best living creature I’ve ever known including humans.
He protected children and loved his job out here.
I hope I can be half the man this dog was to our world. I buried him last evening in his beloved woods.
A heartfelt surprise for her best friend on graduation day.. She didn’t expect it because they hadn’t seen each other in so long, ever since her friend moved to another citypic.twitter.com/3pxswYFVNt
From couple matching to couple chief-ing!!!thrilled and honored to serve as chief residents together at the program that shaped us. Grateful for the journey and excited for what’s ahead! #HUHpic.twitter.com/lClrJpGABW
20th March 2010
A couple – just married – choose to cycle from the church to their reception.
From my book ‘Cambridge – Town & Gown’. pic.twitter.com/Y9zzcUsHh4
We got him moved into the new house! His bride-to-be is helping him decorate and put things away and will be joining him there on their wedding night! Today, only a few tears were shed (out of his sight). We are beyond happy for them! @BrandonLansdownpic.twitter.com/NSNmzg8hyG
Naistenpäivän kunniaksi haluan jakaa, että minulla on onni ja siunaus odottaa omaa tytärtä. Toivon näyttäväni hänelle samanlaista naisen mallia kuin oma äitini on näyttänyt minulle. Nainen voi olla vahva ja lempeä, sitkeä ja kaunis, herkkä ja periksiantamaton. Nainen voi olla… pic.twitter.com/MivsLRh1wJ
Syracuse University. Kissing Bench: This bench on the Quad is steeped in tradition. Legend has it that if a couple kisses on the bench, they will eventually marry. Conversely, if a single person sits there alone, they risk staying single forever.
University of Idaho. Hello Walk and Kissing Rock: While not a bench, this area on campus features a large rock where students have historically kissed. It’s a romantic tradition for couples at the university.
It is so rare for people to see a normal, white family that lefties think it gives ”Third Reich vibes”. This really tells us that we need to make it less rare.
Although most closely associated with All Saints’ Day, “For All the Saints” is often sung throughout the year in Anglican churches and collegiate chapels because its theme is not confined to a single feast. It celebrates the Church as a continuing fellowship across generations, encouraging Christians in the ordinary work of discipleship. In that respect, it speaks naturally to the long green season of Ordinary Time
Music is the oldest continuously evolving grammar of ordered relationships in the Western intellectual tradition.
For all the saints, who from their labours rest, Who thee by faith before the world confessed, Thy Name, O Jesus, be for ever blessed. Alleluia, Alleluia!
Thou wast their Rock, their Fortress and their Might; Thou, Lord, their Captain in the well-fought fight; Thou, in the darkness drear, their one true Light. Alleluia, Alleluia!
O may thy soldiers, faithful, true and bold, Fight as the saints who nobly fought of old, And win, with them, the victor’s crown of gold. Alleluia, Alleluia!
O blest communion, fellowship divine! We feebly struggle, they in glory shine; Yet all are one in thee, for all are thine. Alleluia, Alleluia!
And when the strife is fierce, the warfare long, Steals on the ear the distant triumph song, And hearts are brave again and arms are strong. Alleluia, Alleluia!
The golden evening brightens in the west; Soon, soon to faithful warriors cometh rest; Sweet is the calm of Paradise the blest. Alleluia, Alleluia!
But lo! there breaks a yet more glorious day; The saints triumphant rise in bright array; The King of Glory passes on his way. Alleluia, Alleluia!
From earth’s wide bounds, from ocean’s farthest coast, Through gates of pearl streams in the countless host, Singing to Father, Son and Holy Ghost: Alleluia, Alleluia!
Soybeans play a critical role in the food chain as a source of protein and oil for human consumption, animal feed, food processing, industrial applications, and sustainable agricultural practices. They are a versatile and widely used crop that contributes to various aspects of the global food system.
Call us biased, but we have the best group of future occupational therapists in @CSU_OT 💚💛
Last week’s convocation, where we welcomed our cohorts of OT Rams back to campus, was filled with good vibes and high energy for the year ahead 🐏⚡️ pic.twitter.com/8wTJ2rPi8S
New update alert! The 2022 update to the Trademark Assignment Dataset is now available online. Find 1.29 million trademark assignments, involving 2.28 million unique trademark properties issued by the USPTO between March 1952 and January 2023: https://t.co/njrDAbSpwBpic.twitter.com/GkAXrHoQ9T
