LIBRARY OF CONGRESS CYAC SUBJECT HEADINGS
TENTATIVE MONTHLY LIST 08 CYAC
The proposed headings on this list are NOT YET APPROVED and not yet available for use in current cataloging.
Send all comments on this list to the CYAC Program - Email: cyacprog@loc.gov
"(A)" indicates pre-approved proposals for material in Priority 1. "(C)" indicates proposals submitted by libraries in the Subject Authority Cooperative Program (SACO).
 
 
CHILDREN'S SUBJECT HEADINGS
 
150
Altruism    [Not Subd Geog]    [sp2021051236]
 
053
HM1146 (Social psychology) DELETE FIELD
 
053
HM1146 (Sociology) ADD FIELD
 
550
RT Helping behavior DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Autonomic nervous system    [Not Subd Geog]    [sp2025050257]
 
053
QH508 (Biology (General))
 
450
UF ANS (Autonomic nervous system)
 
450
UF Vegetative nervous system
 
450
UF Visceral nervous system
 
550
BT Nervous system
 
 
150
Homeostasis    [Not Subd Geog]    [sp2021057377]
 
053
QP90.4 DELETE FIELD
 
053
QP90.4 (Physiology) ADD FIELD
 
450
UF Autoregulation ADD FIELD
 
550
BT Biological control systems DELETE FIELD
 
550
BT Body fluids DELETE FIELD
 
550
BT Autonomic nervous system ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Thermoregulation    [Not Subd Geog]    [sp2025050193]
 
450
UF Body temperature--Regulation
 
450
UF Body temperature regulation
 
450
UF Heat regulation
 
450
UF Regulation of body temperature
 
550
BT Autonomic nervous system
 
550
BT Physiology
 
 
150
Brotherliness    [Not Subd Geog]    [sp2021051467]
 
053
BJ1533.B7 (Ethics) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Cardiopulmonary system    [Not Subd Geog]    [sp2021056480]
 
450
UF Cardiopneumatic system DELETE FIELD
 
450
UF Cardiorespiratory system DELETE FIELD
 
450
UF Pneumocardial system DELETE FIELD
 
550
BT Organs (Anatomy) DELETE FIELD
 
550
BT Circulatory system ADD FIELD
 
550
BT Respiratory system ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Caring    [Not Subd Geog]    [sp2021054990]
 
053
BF723.C25 (Psychology) ADD FIELD
 
550
RT Helping behavior DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Cells    [Not Subd Geog]    [sp2021050604]
 
053
QH573-QH671 DELETE FIELD
 
550
BT Tissues ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Charity    [Not Subd Geog]    [sp2021052517]
 
053
BJ1286.C5 (Ethics) ADD FIELD
 
053
BJ1533.C36 (Individual ethics) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
681
Example under Virtues DELETE FIELD
 
 
150
Circulatory system    [Not Subd Geog] ADD GEOG    [sp 96005092 ]
 
053
QL835-QL841 (Zoology) ADD FIELD
 
053
QM178-QM197 (Human anatomy) ADD FIELD
 
450
UF Vascular system ADD FIELD
 
550
BT Organs (Anatomy) ADD FIELD
 
 
150
Blood    [Not Subd Geog]    [sp2021054920]
 
053
QP91-QP99.5 DELETE FIELD
 
053
QP91-QP99.5 (Physiology) ADD FIELD
 
550
RT Fear of blood DELETE FIELD
 
550
BT Blood vessels ADD FIELD
 
550
BT Tissues ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Blood circulation    [Not Subd Geog]    [sp2025050195]
 
053
QP101-QP110 (Physiology)
 
450
UF Blood--Circulation
 
450
UF Blood flow
 
550
BT Circulatory system
 
 
150
Blood vessels    [Not Subd Geog]    [sp2025050194]
 
053
QL835 (Zoology)
 
053
QM191 (Human anatomy)
 
550
BT Circulatory system
 
 
150
Pulse    [Not Subd Geog]    [sp2021060916]
 
053
QP101 DELETE FIELD
 
053
RC74 (Diagnosis) DELETE FIELD
 
053
RC74 (Internal medicine) ADD FIELD
 
450
UF Heart rate ADD FIELD
 
550
BT Blood--Circulation DELETE FIELD
 
550
BT Heart--Diseases--Diagnosis DELETE FIELD
 
550
RT Heart beat DELETE FIELD
 
550
BT Physical diagnosis DELETE FIELD
 
550
BT Blood circulation ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Concussion    [May Subd Geog]    [sp2025050253]
 
053
RC394.C7 (Internal medicine)
 
450
UF Brain--Concussion
 
450
UF Brain concussion
 
450
UF Cerebral concussion
 
450
UF Concussion of the brain
 
550
BT Brain injuries
 
 
150
Convulsions    [May Subd Geog] CHANGE GEOG    [sp2021061110]
 
053
RC394.C77 DELETE FIELD
 
053
RC394.C77 (Internal medicine) ADD FIELD
 
450
UF Convulsive disorders DELETE FIELD
 
450
UF Convulsive seizures DELETE FIELD
 
450
UF Seizures, Convulsive DELETE FIELD
 
450
UF Seizures (Medicine) ADD FIELD
 
550
BT Nervous system--Diseases DELETE FIELD
 
550
RT Epilepsy DELETE FIELD
 
550
RT Spasms DELETE FIELD
 
550
BT Symptoms ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Courage    [Not Subd Geog]    [sp2021051194]
 
053
BF723.C694 (Developmental psychology) ADD FIELD
 
450
UF Dauntlessness DELETE FIELD
 
450
UF Intrepidity DELETE FIELD
 
450
UF Intrepidness DELETE FIELD
 
450
UF Valiance DELETE FIELD
 
450
UF Valiancy DELETE FIELD
 
450
UF Valiantness DELETE FIELD
 
450
UF Valorousness DELETE FIELD
 
550
RT Heroes DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Encouragement    [Not Subd Geog]    [sp2021057594]
 
550
BT Helping behavior DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Endocrine system    [Not Subd Geog]    [sp2025050255]
 
550
BT Organs (Anatomy)
 
 
150
Endocrine glands    [May Subd Geog] CHANGE GEOG    [sp2021055074]
 
053
QL868 (Comparative anatomy) DELETE FIELD
 
053
QM576 (Histology) DELETE FIELD
 
053
QL868 (Zoology) ADD FIELD
 
053
QM576 (Human and comparative histology) ADD FIELD
 
450
UF Gland of internal secretion DELETE FIELD
 
450
UF Glands, Ductless [Former heading] DELETE FIELD
 
550
RT Chromaffin cells DELETE FIELD
 
550
RT Hormones DELETE FIELD
 
550
BT Endocrine system ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Ovaries    [Not Subd Geog]    [sp2021060497]
 
053
QL881 (Comparative anatomy) DELETE FIELD
 
053
QL881 (Zoology) ADD FIELD
 
550
BT Adnexa uteri DELETE FIELD
 
550
BT Gonads DELETE FIELD
 
550
BT Ovum DELETE FIELD
 
550
BT Endocrine glands ADD FIELD
 
550
BT Female reproductive system ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Pituitary gland    [Not Subd Geog]    [sp2025050199]
 
053
QL868 (Zoology)
 
053
QM371 (Human anatomy)
 
053
QP188.P58 (Physiology)
 
450
UF Hypophysis
 
450
UF Hypophysis cerebri
 
450
UF Master gland
 
450
UF Pituitary body
 
550
BT Brain
 
550
BT Endocrine glands
 
 
150
Fairness    [Not Subd Geog]    [sp2021050287]
 
053
BJ1533.F2 DELETE FIELD
 
053
BJ1533.F2 (Ethics) ADD FIELD
 
053
K247 (Law in general) ADD FIELD
 
550
RT Justice DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Fellowship    [Not Subd Geog]    [sp2021057671]
 
450
UF Comradeship [Former heading] DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Forgiveness    [Not Subd Geog]    [sp2021051731]
 
450
UF Unforgiveness DELETE FIELD
 
450
UF Amnesty ADD FIELD
 
450
UF Pardon ADD FIELD
 
550
RT Absolution DELETE FIELD
 
550
RT Amnesty DELETE FIELD
 
550
RT Clemency DELETE FIELD
 
550
RT Pardon DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Glands    [Not Subd Geog]    [sp2021057378]
 
053
QL865-QL868 (Comparative anatomy) DELETE FIELD
 
053
QL865-QL868 (Zoology) ADD FIELD
 
360
SA particular glands, e.g. Cowper's glands; Hemolymph glands; Kidneys; Liver DELETE FIELD
 
550
BT Organs (Anatomy) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Heart    [Not Subd Geog]    [sp2021050389]
 
360
SA headings beginning with the words Cardiac or Cardiogenic DELETE FIELD
 
550
BT Cardiopulmonary system DELETE FIELD
 
550
BT Cardiovascular system DELETE FIELD
 
550
BT Chest DELETE FIELD
 
550
BT Circulatory system ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
681
Example under Viscera DELETE FIELD
 
681
Note under Embryology, Human DELETE FIELD
 
 
150
Heart, Artificial CHANGE HEADING
 
150
Artificial heart    [May Subd Geog] CHANGE GEOG    [sp2021056412]
 
053
RD598.35.A78 (Surgery)
 
450
UF Heart, Artificial [Former heading]
 
450
UF Mechanical heart
 
550
BT Artificial organs
 
688
Heading changed from Heart, Artificial to Artificial heart in August 2025.
 
 
150
Heart sounds    [May Subd Geog]    [sp2025050254]
 
450
UF Cardiac sounds
 
450
UF Heart--Sounds
 
550
BT Sound
 
 
150
Heart murmurs    [May Subd Geog] CHANGE GEOG    [sp2021053497]
 
450
UF Heart--Sounds, Abnormal DELETE FIELD
 
450
UF Murmurs, Heart DELETE FIELD
 
450
UF Heart--Abnormal sounds ADD FIELD
 
450
UF Murmurs ADD FIELD
 
550
BT Heart--Sounds DELETE FIELD
 
550
BT Heart valves--Diseases DELETE FIELD
 
550
BT Heart sounds ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Hundredth Day of School    [May Subd Geog]    [sp2021059527]
 
450
UF One Hundredth Day of School ADD FIELD
 
550
BT Special days ADD FIELD
 
 
150
Justice    [Not Subd Geog]    [sp2021050285]
 
053
GN493 (Primitive) DELETE FIELD
 
053
B105.J87 (Philosophy) ADD FIELD
 
053
BF789.J8 (Psychology) ADD FIELD
 
053
BJ1533.J9 (Ethics) ADD FIELD
 
550
RT Common good DELETE FIELD
 
550
RT Fairness DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Kindness    [Not Subd Geog]    [sp2021051921]
 
053
BJ1533.K5 DELETE FIELD
 
053
BJ1533.K5 (Ethics) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
681
Example under Virtues DELETE FIELD
 
 
150
Loyalty    [Not Subd Geog]    [sp2021055044]
 
053
BV4647.L6 (Practical theology) ADD FIELD
 
450
UF Allegiance ADD FIELD
 
550
RT Constancy DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Lungs    [Not Subd Geog]    [sp2021052372]
 
 
150
Mountains--Hawaii    [sp2025050221]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.
 
 
150
Mountains--Switzerland    [sp2025050229]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.
 
 
150
Mouth--Diseases CHANGE HEADING
 
150
Mouth diseases    [May Subd Geog]    [sp2022050017]
 
053
RC815-RC815.6 (Internal medicine)
 
053
RJ460-RJ463 (Pediatrics)
 
450
UF Mouth--Diseases [Former heading]
 
550
BT Diseases
 
688
Heading changed from Mouth--Diseases to Mouth diseases in August 2025.
 
 
150
Muscular system CHANGE HEADING
 
150
Musculoskeletal system    [May Subd Geog] ADD GEOG    [sp 96005974 ]
 
053
QL821-QL831 (Zoology)
 
053
QM100-QM170 (Human anatomy)
 
053
QP301-QP336 (Physiology)
 
450
UF Muscular system [Former heading]
 
450
UF Skeletal system
 
550
BT Anatomy
 
688
Heading changed from Muscular system to Musculoskeletal system in August 2025.
 
 
150
Muscles    [May Subd Geog] ADD GEOG    [sp 96005973 ]
 
053
QL831 (Zoology) ADD FIELD
 
053
QM151-QM165 (Human anatomy) ADD FIELD
 
053
QM571 (Human and comparative histology) ADD FIELD
 
053
QP321 (Physiology) ADD FIELD
 
450
UF Muscle ADD FIELD
 
450
UF Muscle tissue ADD FIELD
 
550
BT Musculoskeletal system ADD FIELD
 
550
BT Tissues ADD FIELD
 
 
150
Nationalism    [Not Subd Geog]    [sp2021051549]
 
053
JC311-JC314 (Political science) DELETE FIELD
 
053
JC311-JC314 (Political theory) ADD FIELD
 
450
UF Consciousness, National DELETE FIELD
 
450
UF Identity, National DELETE FIELD
 
550
RT Autonomy and independence movements DELETE FIELD
 
550
RT Internationalism DELETE FIELD
 
550
RT Political messianism DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Neighborliness    [Not Subd Geog]    [sp2021051440]
 
053
BJ1533.N4 (Ethics) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Obedience    [Not Subd Geog]    [sp2021051144]
 
053
BJ1459 (Ethics) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Patience    [Not Subd Geog]    [sp2021051445]
 
053
BJ1533.P3 DELETE FIELD
 
053
BJ1286.P38 (Ethics) ADD FIELD
 
053
BJ1533.P3 (Individual ethics) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
681
Example under Virtues DELETE FIELD
 
 
150
Patriotism    [Not Subd Geog]    [sp2021051585]
 
053
JC329 DELETE FIELD
 
053
JK1758-JK1759 (United States) DELETE FIELD
 
053
JC329-JC329.22 (Political theory) ADD FIELD
 
550
RT Allegiance DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Pen pals    [Not Subd Geog]    [sp2021052357]
 
053
LB3614 (Students) DELETE FIELD
 
053
LB3614 (Theory and practice of education) ADD FIELD
 
450
UF Pals, Pen DELETE FIELD
 
550
RT International correspondence DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Peninsulas--Michigan    [sp2025050234]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.
 
 
150
Pride and vanity    [Not Subd Geog]    [sp2021052713]
 
053
BJ1535.P9 DELETE FIELD
 
053
BJ1535.P9 (Ethics) ADD FIELD
 
450
UF Conceit ADD FIELD
 
550
RT Folly DELETE FIELD
 
550
RT Snobs and snobbishness DELETE FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Proving grounds--Nevada    [sp2025050237]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.
 
 
150
Rivers--Brazil    [sp2025050223]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.
 
 
150
Rivers--Colombia    [sp2025050224]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.
 
 
150
Rivers--Peru    [sp2025050225]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.
 
 
150
Secretion    [Not Subd Geog]    [sp2025050249]
 
053
QP190-QP246 (Physiology)
 
550
BT Physiology
 
 
150
Snobs and snobbishness    [Not Subd Geog]    [sp2021054478]
 
053
BJ1535.S7 (Ethics) ADD FIELD
 
053
GT3433 (Manners and customs) ADD FIELD
 
450
UF Snobbery DELETE FIELD
 
450
UF Snobbism DELETE FIELD
 
450
UF Arrogance ADD FIELD
 
450
UF Superiority ADD FIELD
 
550
RT Pride and vanity DELETE FIELD
 
550
BT Conduct of life ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
 
150
Testing    [May Subd Geog]    [sp2025050200]
 
680
Assign an additional heading for the types of animals, chemicals, materials, instruments, equipment, products, etc. being tested, if appropriate.
 
 
150
Tissues    [Not Subd Geog]    [sp2021059766]
 
053
QM551-QM575 (Histology) DELETE FIELD
 
550
RT Histology DELETE FIELD
 
550
RT Organs (Anatomy) DELETE FIELD
 
550
BT Organs (Anatomy) ADD FIELD
 
667
Machine-derived authority record. DELETE FIELD
 
680
General works on the microscopic anatomy of animal tissues are entered under the heading Histology. Studies of particular tissues or organs are entered under the name of the tissue or organ, e.g. Bone, Cartilage, Kidneys, Pancreas. DELETE FIELD
 
 
150
Virtue CANCEL HEADING    [sp2021057555]
 
682
This authority record has been deleted because because the heading is covered by the subject heading Virtue and virtues (DLC)sp2021050538
 
 
150
Virtues CHANGE HEADING
 
150
Virtue and virtues    [Not Subd Geog]    [sp2021050538]
 
053
BJ1518-BJ1697 (Ethics)
 
450
UF Virtue [Former heading]
 
450
UF Virtues [Former heading]
 
550
BT Conduct of life
 
550
BT Ethics
 
 
150
Volcanoes--Hawaii    [sp2025050220]
 
680
Use on nonfiction. For fictional works assign separate headings, do not subdivide geographically.